# Common Issues with AI-Built Apps

Browse 587 step-by-step guides for the most common problems builders face with AI coding tools.

Search

## [Something wrong with your AI-built app?](/content/guides/common/index.html)

Not sure what went wrong? Start here. No technical knowledge needed.

[**My AI-Built App Is Broken and I Don't Know Why** general](/content/guides/common/ai-built-app-is-broken/index.html) [**My AI App Won't Deploy or Go Live** deployment](/content/guides/common/ai-app-not-deploying/index.html) [**Login or Signup Not Working in My AI App** auth](/content/guides/common/login-not-working/index.html) [**App Shows a Blank White Page After Deploy** deployment](/content/guides/common/blank-page-after-deploy/index.html) [**Data Not Saving to Database in My AI App** database](/content/guides/common/database-not-saving-data/index.html) [**My AI-Built App Is Really Slow** performance](/content/guides/common/app-is-slow/index.html) [**App Layout Is Broken on Mobile** ui](/content/guides/common/mobile-layout-broken/index.html) [**Payments or Checkout Not Working in My AI App** general](/content/guides/common/payments-not-working/index.html) [**Images Not Showing in My AI App** ui](/content/guides/common/images-not-loading/index.html) [**Email Notifications Not Sending From My AI App** general](/content/guides/common/email-notifications-not-sending/index.html) [**API Calls Failing With Errors in My AI App** general](/content/guides/common/api-calls-failing/index.html) [**Search Feature Not Working in My AI App** general](/content/guides/common/search-not-working/index.html) [**Form Validation Not Working Properly** ui](/content/guides/common/form-validation-broken/index.html) [**Users Can See or Do Things They Shouldn't** auth](/content/guides/common/user-permissions-wrong/index.html) [**App Styling and Design Looks Wrong or Broken** ui](/content/guides/common/styling-looks-wrong/index.html) [**I Hired an AI Tool to Build My Website and Now It's Broken** general](/content/guides/common/hired-ai-to-build-website-now-broken/index.html) [**My AI App Crashes Randomly or Shows Error Pages** general](/content/guides/common/app-crashes-randomly/index.html) [**I Can't Add a New Feature Without Breaking Something** general](/content/guides/common/cant-add-new-feature/index.html) [**SSL Certificate Error or Site Not Secure Warning** deployment](/content/guides/common/ssl-certificate-error/index.html) [**Environment Variables Not Working in Production** deployment](/content/guides/common/environment-variables-not-working/index.html) [**Third-Party Integration Not Working (APIs, Webhooks, OAuth)** general](/content/guides/common/third-party-integration-broken/index.html) [**Real-Time Features Not Working (Chat, Notifications, Live Updates)** general](/content/guides/common/real-time-features-not-working/index.html) [**My AI App Doesn't Appear in Google Search** general](/content/guides/common/seo-not-working/index.html) [**Password Reset Not Working** auth](/content/guides/common/password-reset-broken/index.html) [**File Upload Not Working in My AI App** general](/content/guides/common/file-upload-broken/index.html) [**Dark Mode Not Working Properly** ui](/content/guides/common/dark-mode-broken/index.html) [**Navigation or Routing Not Working** ui](/content/guides/common/navigation-broken/index.html) [**Dates and Times Showing Wrong in My App** general](/content/guides/common/date-time-wrong/index.html) [**App Not Working on Some Browsers or Devices** general](/content/guides/common/app-not-loading-on-some-browsers/index.html) [**Can't Connect My Custom Domain to the App** deployment](/content/guides/common/cant-connect-custom-domain/index.html) [**In-App Notifications Not Showing** ui](/content/guides/common/notifications-not-working/index.html) [**I Want a Code Review Before Launching My AI-Built App** general](/content/guides/common/code-review-before-launch/index.html) [**Users Can See Each Other's Private Data** auth](/content/guides/common/data-showing-to-wrong-users/index.html) [**Build Errors Preventing Deployment** deployment](/content/guides/common/build-errors-cant-deploy/index.html) [**Google Says My Website Is Slow** seo](/content/guides/common/google-says-my-website-is-slow/index.html) [**I Paid Someone to Build My App and Now It's Broken** general](/content/guides/common/fiverr-developer-broke-my-app/index.html) [**My App Works on My Computer but Not When I Share the Link** general](/content/guides/common/app-works-locally-not-when-shared/index.html) [**I Can't Update My App After the AI Tool Made Changes** general](/content/guides/common/cant-update-app-after-ai-changes/index.html) [**My App Loads but Shows a Blank White Screen** general](/content/guides/common/app-loads-blank-white-screen/index.html) [**My App Was Working Yesterday and Now It's Completely Down** general](/content/guides/common/app-was-working-now-completely-down/index.html) [**Someone Hacked My AI-Built App** security](/content/guides/common/someone-hacked-my-ai-built-app/index.html) [**My Users' Passwords Might Be Exposed** security](/content/guides/common/user-passwords-might-be-exposed/index.html) [**My App Is Sending Spam Emails I Didn't Create** security](/content/guides/common/app-sending-spam-emails/index.html) [**Customers Can't Pay on My Website** payments](/content/guides/common/customers-cant-pay-on-my-website/index.html) [**Payments Go Through but Orders Don't Appear** payments](/content/guides/common/payments-go-through-orders-dont-appear/index.html) [**Refunds Not Working on My Website** payments](/content/guides/common/refunds-not-working/index.html) [**My App Looks Terrible on Phones** mobile](/content/guides/common/app-looks-terrible-on-phones/index.html) [**My App Won't Install on iPhone Home Screen** mobile](/content/guides/common/app-wont-install-on-iphone-home-screen/index.html) [**Buttons and Links Too Small to Tap on Mobile** mobile](/content/guides/common/buttons-too-small-to-tap-on-mobile/index.html) [**My AI-Built Website Doesn't Show Up on Google** seo](/content/guides/common/ai-website-doesnt-show-on-google/index.html) [**My Website Preview Looks Wrong on Social Media** seo](/content/guides/common/website-preview-wrong-on-social-media/index.html) [**I Lost All My App's Data** data](/content/guides/common/lost-all-my-app-data/index.html) [**My App Is Showing Wrong Data to Users** data](/content/guides/common/app-showing-wrong-data-to-users/index.html) [**I Need to Export My Data but There's No Option** data](/content/guides/common/need-to-export-data-but-no-option/index.html) [**AI Tool Credits Ran Out and My App Isn't Finished** general](/content/guides/common/ai-tool-credits-ran-out/index.html)

## [Base44](/content/guides/base44/index.html)

60 guides

[**Base44 Login Page Not Loading or Showing Blank Screen** auth](/content/guides/base44/login-page-not-loading/index.html) [**Role-Based Access Control Not Restricting Pages in Base44** auth](/content/guides/base44/role-based-access-not-working/index.html) [**Base44 Email Verification Not Sending or Failing on Signup** auth](/content/guides/base44/signup-email-verification-failing/index.html) [**Google or Social Login Not Working in Base44 App** auth](/content/guides/base44/oauth-social-login-not-working/index.html) [**User Sessions Expiring Too Quickly in Base44 App** auth](/content/guides/base44/session-expiring-too-quickly/index.html) [**Form Submissions Not Saving to Database in Base44** database](/content/guides/base44/form-data-not-saving-to-database/index.html) [**Database Relationship and Foreign Key Errors in Base44** database](/content/guides/base44/database-relationship-errors/index.html) [**Unexpected Data Validation Errors When Saving Records in Base44** database](/content/guides/base44/data-validation-errors-on-save/index.html) [**CSV Data Import or Migration Failing in Base44** database](/content/guides/base44/data-migration-import-failing/index.html) [**Duplicate Records Being Created in Base44 Database** database](/content/guides/base44/duplicate-records-appearing/index.html) [**Computed or Formula Fields Not Updating in Base44** database](/content/guides/base44/computed-fields-not-updating/index.html) [**Base44 App Not Loading After Publishing** deployment](/content/guides/base44/app-not-loading-after-publish/index.html) [**Custom Domain Not Connecting to Base44 App** deployment](/content/guides/base44/custom-domain-not-working/index.html) [**SSL Certificate Errors on Base44 Published App** deployment](/content/guides/base44/ssl-certificate-errors/index.html) [**Base44 App Build Failing After Recent Changes** deployment](/content/guides/base44/build-failure-after-changes/index.html) [**Environment Variables or Secrets Not Available in Published Base44 App** deployment](/content/guides/base44/environment-variables-not-working/index.html) [**Base44 App Page Layout Broken on Mobile Devices** ui](/content/guides/base44/page-layout-broken-on-mobile/index.html) [**Forms Rendering Incorrectly or Missing Fields in Base44** ui](/content/guides/base44/form-rendering-incorrectly/index.html) [**Custom Styling and CSS Not Applying to Base44 Components** ui](/content/guides/base44/component-styling-not-applying/index.html) [**Conditional Visibility Rules Not Working on Base44 Components** ui](/content/guides/base44/conditional-visibility-not-working/index.html) [**Modals and Popups Not Opening or Closing Correctly in Base44** ui](/content/guides/base44/modal-popup-not-closing/index.html) [**Data Tables and Grids Not Displaying Correctly in Base44** ui](/content/guides/base44/table-data-grid-display-issues/index.html) [**Navigation Menu Not Updating or Showing Wrong Links in Base44** ui](/content/guides/base44/navigation-menu-not-updating/index.html) [**Workflow Automations Not Triggering in Base44** api](/content/guides/base44/workflow-automation-not-triggering/index.html) [**Third-Party API Integration Not Working in Base44** api](/content/guides/base44/third-party-api-integration-failing/index.html) [**Webhooks Not Receiving or Processing Data in Base44** api](/content/guides/base44/webhook-not-receiving-data/index.html) [**Email Sending Not Working in Base44 App Workflows** api](/content/guides/base44/email-sending-integration-broken/index.html) [**Stripe Payment Integration Not Working in Base44 App** api](/content/guides/base44/stripe-payment-integration-errors/index.html) [**Custom REST API Endpoints Returning Errors in Base44** api](/content/guides/base44/rest-api-endpoint-returning-errors/index.html) [**Zapier or Make Integration Disconnected from Base44 App** api](/content/guides/base44/zapier-integration-disconnected/index.html) [**Slow Page Load Times in Base44 Application** performance](/content/guides/base44/slow-page-load-times/index.html) [**Large Data Sets Causing Timeouts and Crashes in Base44** performance](/content/guides/base44/large-dataset-causing-timeouts/index.html) [**Image Upload and Display Performance Issues in Base44** performance](/content/guides/base44/image-upload-and-display-slow/index.html) [**Dashboard Charts and Analytics Loading Slowly in Base44** performance](/content/guides/base44/dashboard-charts-loading-slowly/index.html) [**Search Functionality Slow or Returning Wrong Results in Base44** performance](/content/guides/base44/search-functionality-slow-or-broken/index.html) [**File Downloads and Data Exports Timing Out in Base44** performance](/content/guides/base44/file-download-export-timing-out/index.html) [**Real-Time Data Updates Not Reflecting in Base44 App** performance](/content/guides/base44/real-time-updates-not-working/index.html) [**PDF Generation and Report Creation Failing in Base44** api](/content/guides/base44/pdf-generation-failing/index.html) [**Multi-Language and Internationalization Issues in Base44 App** ui](/content/guides/base44/multi-language-content-issues/index.html) [**File Upload Functionality Broken or Failing in Base44** ui](/content/guides/base44/file-upload-not-working/index.html) [**Database Tables Publicly Accessible Without Authentication** security](/content/guides/base44/public-db-tables-exposing-data/index.html) [**Forms Accept Any Input Without Validation** security](/content/guides/base44/form-without-validation/index.html) [**Admin Panel Accessible Without Login** security](/content/guides/base44/admin-panel-no-login-required/index.html) [**Image Gallery Thumbnails Not Generating or Displaying** storage](/content/guides/base44/image-gallery-thumbnails-broken/index.html) [**CSV Data Export Timing Out on Large Tables** storage](/content/guides/base44/csv-export-timeout/index.html) [**Data Tables Not Scrollable on Mobile Devices** mobile](/content/guides/base44/data-table-not-scrollable-mobile/index.html) [**Modals and Popups Cut Off on Small Mobile Screens** mobile](/content/guides/base44/modal-cut-off-small-screens/index.html) [**Date Picker Component Unusable on Mobile Phones** mobile](/content/guides/base44/date-picker-unusable-on-phone/index.html) [**Automated Workflow Emails Not Triggering** email](/content/guides/base44/workflow-emails-not-triggering/index.html) [**Email Template Editor Saves Blank Content** email](/content/guides/base44/email-editor-saving-blank/index.html) [**Email Reply-To Address Not Set, Replies Lost** email](/content/guides/base44/reply-to-not-configured/index.html) [**Dashboard Charts Showing Stale Data, Not Refreshing** realtime](/content/guides/base44/dashboard-charts-not-refreshing/index.html) [**Multiple Users Editing Same Record Overwrite Each Other** realtime](/content/guides/base44/multi-user-editing-conflicts/index.html) [**In-App Notification Bell Not Showing New Notifications** realtime](/content/guides/base44/notification-bell-broken/index.html) [**Zapier Webhook Integration Not Triggering** integration](/content/guides/base44/zapier-webhook-not-firing/index.html) [**Google Sheets Sync Dropping or Duplicating Records** integration](/content/guides/base44/google-sheets-sync-losing-data/index.html) [**Scheduled Workflow Running at Wrong Times or Not at All** testing](/content/guides/base44/workflow-wrong-schedule/index.html) [**Form Conditional Logic Not Showing or Hiding Fields** testing](/content/guides/base44/form-conditional-logic-broken/index.html) [**Calculated Fields Returning Wrong Values** testing](/content/guides/base44/calculated-fields-wrong-values/index.html) [**Base44 Credits Ran Out? Here's What to Do** credits](/content/guides/base44/credits-ran-out/index.html)

## [Claude Code](/content/guides/claude-code/index.html)

63 guides

[**Database Transaction Not Rolled Back on Error** database](/content/guides/claude-code/transaction-not-rolled-back/index.html) [**OAuth Token Lost Between Sessions** auth](/content/guides/claude-code/oauth-token-not-persisting/index.html) [**GitHub Token Missing Required Scopes** auth](/content/guides/claude-code/github-token-scope-insufficient/index.html) [**Authentication Middleware Not Blocking Unauthenticated Requests** auth](/content/guides/claude-code/middleware-auth-not-enforced/index.html) [**Database Migration Silently Fails, Schema Mismatch** database](/content/guides/claude-code/database-migration-not-applied/index.html) [**ORM Lazy Loading Disabled, Performance Regression** database](/content/guides/claude-code/orm-lazy-loading-not-configured/index.html) [**Database Seed Data Not Loaded on Startup** database](/content/guides/claude-code/seed-data-not-loading/index.html) [**Docker Build Fails Due to Dependency Conflicts** deployment](/content/guides/claude-code/docker-build-dependency-conflict/index.html) [**CI/CD Pipeline Missing Environment Variables** deployment](/content/guides/claude-code/ci-cd-env-vars-missing/index.html) [**Gradle Build Cache Causes Stale Artifacts** deployment](/content/guides/claude-code/build-script-gradle-cache-issue/index.html) [**UI Component Not Rendering After State Update** ui](/content/guides/claude-code/component-not-rendering-state-issue/index.html) [**CSS Styles Not Applied, Specificity Issue** ui](/content/guides/claude-code/css-specificity-regression/index.html) [**Form Validation Logic Partially Implemented** ui](/content/guides/claude-code/form-validation-not-triggered/index.html) [**Frontend Not Integrated with API Endpoint** api](/content/guides/claude-code/api-endpoint-integration-incomplete/index.html) [**Webhook Handler Not Processing Events** api](/content/guides/claude-code/webhook-integration-silently-failing/index.html) [**Stripe Webhook Events Not Being Processed** api](/content/guides/claude-code/stripe-webhook-failing/index.html) [**API Response Structure Doesn't Match Frontend Expectations** api](/content/guides/claude-code/api-response-mismatch/index.html) [**N+1 Query Problem Causing Performance Degradation** performance](/content/guides/claude-code/n-plus-one-queries/index.html) [**Memory Leak in Long-Running Background Job** performance](/content/guides/claude-code/memory-leak-long-running-process/index.html) [**Inefficient Algorithm Causing Request Timeouts** performance](/content/guides/claude-code/inefficient-algorithm-timeout/index.html) [**Dependency Adding 500KB to Bundle Size** performance](/content/guides/claude-code/excessive-dependency-size/index.html) [**Race Condition in Async State Updates** performance](/content/guides/claude-code/race-condition-async-state/index.html) [**Configuration File Not Loaded from Environment** auth](/content/guides/claude-code/config-not-loaded-environment/index.html) [**Circular Dependency Breaking Application Startup** auth](/content/guides/claude-code/circular-dependency-import/index.html) [**Permission Denied When Writing Files** deployment](/content/guides/claude-code/permission-denied-file-operations/index.html) [**SSL Certificate Validation Failure on HTTPS Calls** deployment](/content/guides/claude-code/ssl-certificate-validation-fails/index.html) [**Server-Side Template Syntax Errors** ui](/content/guides/claude-code/template-syntax-error-ssr/index.html) [**Event Handler Not Triggered on Click** ui](/content/guides/claude-code/onclick-handler-not-working/index.html) [**CORS Preflight Request Failing** api](/content/guides/claude-code/cors-preflight-failing/index.html) [**JWT Token Validation Failing Unexpectedly** auth](/content/guides/claude-code/jwt-token-validation-failing/index.html) [**Password Hashing Not Secure Enough** auth](/content/guides/claude-code/password-hashing-weak/index.html) [**SQL Injection Vulnerability in Query** auth](/content/guides/claude-code/sql-injection-vulnerability/index.html) [**XSS Vulnerability in Template Output** ui](/content/guides/claude-code/xss-vulnerability-template/index.html) [**Database Deadlock in Concurrent Updates** database](/content/guides/claude-code/deadlock-concurrent-updates/index.html) [**Redis Connection Pool Exhaustion** database](/content/guides/claude-code/redis-connection-pooling-issue/index.html) [**Callback Hell Making Code Unmaintainable** performance](/content/guides/claude-code/async-function-callback-hell/index.html) [**Memory Overflow from String Concatenation in Loop** performance](/content/guides/claude-code/memory-overflow-string-concatenation/index.html) [**WebSocket Connection Dropped Unexpectedly** api](/content/guides/claude-code/websocket-connection-lost/index.html) [**CORS Wildcard Allow-Origin Too Permissive** auth](/content/guides/claude-code/cors-wildcard-security-issue/index.html) [**Rate Limiting Not Enforced on API Endpoint** api](/content/guides/claude-code/rate-limiting-not-enforced/index.html) [**Logging Configuration Not Producing Output** deployment](/content/guides/claude-code/logging-no-output/index.html) [**Bean Validation Annotations Not Triggered** api](/content/guides/claude-code/validation-annotation-not-working/index.html) [**Command Injection Vulnerability in AI-Generated Code** security](/content/guides/claude-code/command-injection-in-generated-code/index.html) [**API Keys and Secrets Hardcoded in Source Code** security](/content/guides/claude-code/api-keys-hardcoded-in-source/index.html) [**Missing Input Validation on API Endpoints** security](/content/guides/claude-code/missing-input-validation/index.html) [**File Write Operations Failing with Permission Errors** storage](/content/guides/claude-code/file-write-permissions-denied/index.html) [**Temporary Files Accumulating and Filling Disk Space** storage](/content/guides/claude-code/temp-files-filling-disk/index.html) [**Binary Files Corrupted During Upload or Processing** storage](/content/guides/claude-code/binary-file-corruption/index.html) [**Responsive Layout Breaks Below 375px Screen Width** mobile](/content/guides/claude-code/responsive-css-below-375px/index.html) [**Forms Unusable on Mobile Devices** mobile](/content/guides/claude-code/mobile-form-usability-broken/index.html) [**Background Scroll Not Locked When Modal Is Open** mobile](/content/guides/claude-code/scroll-locking-on-modals/index.html) [**Email Sending Fails After API Deprecation** email](/content/guides/claude-code/deprecated-email-api-breaking/index.html) [**Transactional Emails Delayed by Minutes or Hours** email](/content/guides/claude-code/transactional-email-delays/index.html) [**No Bounce Handling Causing Sender Reputation Damage** email](/content/guides/claude-code/email-bounce-handling-missing/index.html) [**WebSocket Drops Connection with No Automatic Reconnection** realtime](/content/guides/claude-code/websocket-missing-reconnection/index.html) [**Event-Driven Architecture Bottlenecking Under Load** realtime](/content/guides/claude-code/event-architecture-not-scaling/index.html) [**Race Conditions Causing Data Corruption on Concurrent Updates** realtime](/content/guides/claude-code/race-conditions-concurrent-updates/index.html) [**Docker Compose Services Fail to Connect Due to Wrong Names** integration](/content/guides/claude-code/docker-compose-wrong-service-names/index.html) [**GitHub Actions Workflow Failing with Cryptic Errors** integration](/content/guides/claude-code/github-actions-workflow-failing/index.html) [**Tests Pass but Contain Wrong Assertions That Miss Bugs** testing](/content/guides/claude-code/wrong-assertions-in-tests/index.html) [**Critical Business Logic Has No Test Coverage** testing](/content/guides/claude-code/test-coverage-gaps-critical-paths/index.html) [**Integration Tests Fail Randomly Due to Shared State** testing](/content/guides/claude-code/integration-tests-not-isolated/index.html) [**Claude Code Usage Limit Hit? Here's What to Do** credits](/content/guides/claude-code/credits-ran-out/index.html)

## [Bolt](/content/guides/bolt/index.html)

69 guides

[**OAuth2 Provider Not Configured - Missing Client ID** auth](/content/guides/bolt/oauth-missing-client-id/index.html) [**Session Lost on Page Refresh - Auth State Not Persisting** auth](/content/guides/bolt/session-lost-after-refresh/index.html) [**Protected Routes Redirecting Unauthenticated Users Incorrectly** auth](/content/guides/bolt/protected-routes-not-working/index.html) [**JWT Token Validation Fails - Invalid Signature or Expiration** auth](/content/guides/bolt/jwt-token-validation-failed/index.html) [**Prisma Connection Pool Exhausted - Cannot Connect to Database** database](/content/guides/bolt/prisma-connection-pool-exhausted/index.html) [**Prisma Migration Failed - Schema Mismatch** database](/content/guides/bolt/prisma-migration-failed/index.html) [**Supabase Connection Timeout - Auth or Database Requests Hang** database](/content/guides/bolt/supabase-connection-timeout/index.html) [**Firebase Auth Not Initializing - Authentication Fails** database](/content/guides/bolt/firebase-auth-not-initializing/index.html) [**Blank Page After Deploy to Vercel/Netlify** deployment](/content/guides/bolt/blank-page-after-deploy/index.html) [**Environment Variables Not Loading - Undefined in Build** deployment](/content/guides/bolt/env-variables-not-loading/index.html) [**Build Fails - Memory Limit Exceeded or Process Killed** deployment](/content/guides/bolt/build-failure-memory-limit/index.html) [**Vercel Serverless Function Timeout - API Routes Taking Too Long** deployment](/content/guides/bolt/vercel-serverless-timeout/index.html) [**Netlify Build Plugin Configuration Error** deployment](/content/guides/bolt/netlify-build-plugin-error/index.html) [**React Component Not Rendering - Component Returns Nothing** ui](/content/guides/bolt/component-not-rendering-react/index.html) [**Tailwind CSS Classes Not Applying - Styles Ignored** ui](/content/guides/bolt/css-not-applying-tailwind/index.html) [**Hydration Mismatch Error - Server and Client Render Different Content** ui](/content/guides/bolt/hydration-mismatch-nextjs/index.html) [**React State Not Updating - Component Doesn't Re-render** ui](/content/guides/bolt/state-not-updating-react/index.html) [**Event Handlers Not Firing - onClick, onChange Not Working** ui](/content/guides/bolt/event-handler-not-firing/index.html) [**Image Element Not Displaying - src Attribute Issues** ui](/content/guides/bolt/image-not-displaying/index.html) [**Form Submission Not Working - Form Doesn't Send Data** ui](/content/guides/bolt/form-submission-not-working/index.html) [**API Route Returns 500 Error - Internal Server Error** api](/content/guides/bolt/api-route-returning-error/index.html) [**CORS Error - Cross-Origin Request Blocked** api](/content/guides/bolt/cors-blocking-requests/index.html) [**API Request Timeout - Endpoint Takes Too Long** api](/content/guides/bolt/api-timeout-slow-response/index.html) [**Webhook Not Receiving Requests - Events Not Triggered** api](/content/guides/bolt/webhook-not-receiving-requests/index.html) [**Payment Processing Failed - Stripe Integration Error** api](/content/guides/bolt/payment-processing-failed/index.html) [**Slow Bundle Build Time - Build Takes Too Long** performance](/content/guides/bolt/slow-bundle-build-time/index.html) [**Large Bundle Size - App Loads Slowly** performance](/content/guides/bolt/large-bundle-size/index.html) [**Memory Leak - Component Doesn't Clean Up Resources** performance](/content/guides/bolt/memory-leak-component/index.html) [**WebContainer Slow Startup - App Takes Time to Boot** performance](/content/guides/bolt/webcontainer-slow-startup/index.html) [**React Re-rendering Causing Performance Issues - Slow Interactions** performance](/content/guides/bolt/react-reconciliation-slow/index.html) [**ESLint Error Blocking Build - Build Fails on Lint** deployment](/content/guides/bolt/lint-error-blocking-build/index.html) [**TypeScript Compilation Error - Type Mismatch** deployment](/content/guides/bolt/typescript-compilation-error/index.html) [**Dependency Version Conflict - Incompatible Package Versions** deployment](/content/guides/bolt/dependency-version-conflict/index.html) [**Next.js Image Component Optimization Error** ui](/content/guides/bolt/next-image-optimization-error/index.html) [**Font Loading Causing Layout Shift - FOUT or FOIT** performance](/content/guides/bolt/font-loading-delay/index.html) [**Modal Dialog Accessibility Issues - Focus Trap Not Working** ui](/content/guides/bolt/modal-dialog-accessibility/index.html) [**Form Validation Not Working - Errors Not Showing** ui](/content/guides/bolt/form-validation-errors/index.html) [**Infinite Redirect Loop - Auth Redirect Not Ending** auth](/content/guides/bolt/infinite-redirect-loop/index.html) [**CORS Preflight Request Timeout - OPTIONS Request Failing** api](/content/guides/bolt/cors-preflight-timeout/index.html) [**Rate Limit Exceeded - Too Many API Requests** api](/content/guides/bolt/rate-limit-exceeded/index.html) [**Database Query Timeout - Complex Queries Too Slow** database](/content/guides/bolt/database-query-timeout/index.html) [**Database Connection Leak - Connections Never Close** database](/content/guides/bolt/database-connection-leak/index.html) [**Redis Cache Returning Stale Data - Cache Not Invalidating** database](/content/guides/bolt/redis-cache-stale-data/index.html) [**GraphQL Query Too Deep - Nested Query Recursion Attack** api](/content/guides/bolt/graphql-query-too-deep/index.html) [**WebSocket Connection Fails - Real-time Features Not Working** api](/content/guides/bolt/websocket-connection-failing/index.html) [**Long-Running Job Timeout - Background Tasks Interrupted** api](/content/guides/bolt/long-running-job-timeout/index.html) [**Email Sending Fails - Emails Never Received** api](/content/guides/bolt/email-sending-failure/index.html) [**File Upload Exceeds Size Limit - Large File Rejection** api](/content/guides/bolt/file-upload-size-limit/index.html) [**Missing Input Sanitization in Bolt App Forms** security](/content/guides/bolt/missing-input-sanitization/index.html) [**Environment Variables Exposed in Bolt Client Bundle** security](/content/guides/bolt/env-variables-exposed-in-client-bundle/index.html) [**SQL Injection in Bolt AI-Generated Database Queries** security](/content/guides/bolt/sql-injection-generated-queries/index.html) [**Insecure Cookie Configuration in Bolt Application** security](/content/guides/bolt/insecure-cookie-configuration/index.html) [**File Upload Broken After Deploying Bolt App to Production** storage](/content/guides/bolt/file-upload-broken-production/index.html) [**Cloud Storage Permissions Misconfigured in Bolt App** storage](/content/guides/bolt/cloud-storage-permissions-wrong/index.html) [**Image Compression and Optimization Not Working in Bolt App** storage](/content/guides/bolt/image-compression-not-working/index.html) [**Hamburger Menu Not Opening on Mobile in Bolt App** mobile](/content/guides/bolt/hamburger-menu-not-opening/index.html) [**Form Inputs Auto-Zooming on iOS in Bolt App** mobile](/content/guides/bolt/form-inputs-zooming-ios/index.html) [**Bottom Navigation Bar Overlapping Page Content in Bolt App** mobile](/content/guides/bolt/bottom-nav-overlapping-content/index.html) [**Password Reset Email Never Arrives from Bolt App** email](/content/guides/bolt/password-reset-email-never-arrives/index.html) [**Notification Emails Contain Broken Links in Bolt App** email](/content/guides/bolt/notification-emails-broken-links/index.html) [**Contact Form Not Sending Emails in Bolt App** email](/content/guides/bolt/contact-form-not-sending/index.html) [**Chat Messages Not Updating in Real-Time in Bolt App** realtime](/content/guides/bolt/chat-messages-not-realtime/index.html) [**Live Notifications Not Working in Bolt App** realtime](/content/guides/bolt/live-notifications-not-working/index.html) [**Collaborative Editing Feature Broken in Bolt App** realtime](/content/guides/bolt/collaborative-editing-broken/index.html) [**PayPal Payment Integration Errors in Bolt App** integration](/content/guides/bolt/paypal-integration-errors/index.html) [**Google OAuth Consent Screen Misconfigured in Bolt App** integration](/content/guides/bolt/google-oauth-consent-misconfigured/index.html) [**Twilio SMS Messages Not Sending from Bolt App** integration](/content/guides/bolt/twilio-sms-not-sending/index.html) [**Firebase Push Notifications Failing in Bolt App** integration](/content/guides/bolt/firebase-push-notifications-failing/index.html) [**Bolt.new Credits Ran Out? Here's What to Do** credits](/content/guides/bolt/credits-ran-out/index.html)

## [Windsurf](/content/guides/windsurf/index.html)

66 guides

[**Test Database Not Resetting Between Tests in Windsurf Project** testing](/content/guides/windsurf/test-db-not-resetting/index.html) [**Cascade Generated OAuth Token Exposed in Code** auth](/content/guides/windsurf/cascade-oauth-token-leak/index.html) [**Cascade Created Login Redirect Loop** auth](/content/guides/windsurf/cascade-login-redirect-loop/index.html) [**Cascade Broke Redis Session Persistence** auth](/content/guides/windsurf/cascade-session-persistence-broken/index.html) [**JWT Validation Fails in Cascade-Generated Auth** auth](/content/guides/windsurf/cascade-jwt-validation-error/index.html) [**Cascade Created Conflicting Database Migrations** database](/content/guides/windsurf/cascade-database-migration-conflict/index.html) [**Cascade-Generated ORM Code Causes LazyInitializationException** database](/content/guides/windsurf/cascade-orm-lazy-loading-error/index.html) [**Cascade Generated N+1 Query Problem** database](/content/guides/windsurf/cascade-n-plus-one-queries/index.html) [**Cascade Left Database Schema Out of Sync** database](/content/guides/windsurf/cascade-schema-version-mismatch/index.html) [**Cascade Build Fails - Missing Dependency** deployment](/content/guides/windsurf/cascade-build-failure-missing-dependency/index.html) [**Cascade Modified Dockerfile - Docker Build Timeout** deployment](/content/guides/windsurf/cascade-docker-build-timeout/index.html) [**Cascade Configuration - Environment Variables Not Loaded** deployment](/content/guides/windsurf/cascade-env-vars-not-loaded/index.html) [**Cascade Broke CI/CD Pipeline Configuration** deployment](/content/guides/windsurf/cascade-ci-cd-pipeline-broken/index.html) [**Cascade Broke Payment Form UI Components** ui](/content/guides/windsurf/cascade-payment-form-broken/index.html) [**Cascade Broke Responsive CSS Layout** ui](/content/guides/windsurf/cascade-responsive-layout-broken/index.html) [**Cascade Removed Form Validation Logic** ui](/content/guides/windsurf/cascade-form-validation-broken/index.html) [**Cascade Generated Modal Component State Desync** ui](/content/guides/windsurf/cascade-modal-state-not-syncing/index.html) [**Cascade Created Duplicate API Endpoints** api](/content/guides/windsurf/cascade-duplicate-api-endpoints/index.html) [**Cascade Modified API Response Contract** api](/content/guides/windsurf/cascade-api-contract-changed/index.html) [**Cascade Disabled Middleware - Security Filter Broken** api](/content/guides/windsurf/cascade-middleware-not-executing/index.html) [**Cascade Broke Webhook Signature Validation** api](/content/guides/windsurf/cascade-webhook-signature-validation-broken/index.html) [**Cascade Removed Rate Limiting Configuration** api](/content/guides/windsurf/cascade-rate-limiting-removed/index.html) [**Cascade Generated Code with Memory Leak** performance](/content/guides/windsurf/cascade-memory-leak-created/index.html) [**Cascade Generated Inefficient Database Query** performance](/content/guides/windsurf/cascade-slow-query-generated/index.html) [**Cascade Added Large Dependencies - Bundle Bloat** performance](/content/guides/windsurf/cascade-large-bundle-size/index.html) [**Cascade Generated CPU-Intensive Loop** performance](/content/guides/windsurf/cascade-cpu-usage-spike/index.html) [**Cascade WebSocket Implementation Drops Connections** performance](/content/guides/windsurf/cascade-websocket-connection-lost/index.html) [**Cascade Broke Stripe Connect Setup** api](/content/guides/windsurf/cascade-stripe-connect-token-invalid/index.html) [**Cascade GitHub Integration - Fork Permission Denied** api](/content/guides/windsurf/cascade-github-fork-permission-denied/index.html) [**Cascade Email Queue Processing Halted** api](/content/guides/windsurf/cascade-email-queue-stuck/index.html) [**Cascade Broke Thymeleaf Template Rendering** ui](/content/guides/windsurf/cascade-thymeleaf-template-error/index.html) [**Cascade Disabled Cache Invalidation Logic** performance](/content/guides/windsurf/cascade-cache-invalidation-broken/index.html) [**Cascade Set CORS to Allow All Origins** api](/content/guides/windsurf/cascade-cors-wildcard-security/index.html) [**Cascade Generated SQL Injection Vulnerability** api](/content/guides/windsurf/cascade-sql-injection-vulnerability/index.html) [**Cascade Introduced XSS Vulnerability in Templates** ui](/content/guides/windsurf/cascade-xss-vulnerability-created/index.html) [**Cascade Changed Transaction Isolation Level** database](/content/guides/windsurf/cascade-transaction-isolation-broken/index.html) [**Cascade Disabled Scheduled Tasks** deployment](/content/guides/windsurf/cascade-scheduled-task-not-running/index.html) [**Cascade File Upload Without Validation** api](/content/guides/windsurf/cascade-file-upload-vulnerability/index.html) [**Cascade Hardcoded Encryption Keys** api](/content/guides/windsurf/cascade-encryption-key-hardcoded/index.html) [**Cascade Generated Code Causing NPE Waves** deployment](/content/guides/windsurf/cascade-null-pointer-exception-wave/index.html) [**Cascade Referenced Missing Classpath Resource** deployment](/content/guides/windsurf/cascade-classpath-resource-not-found/index.html) [**Cascade Created Spring Bean Circular Dependency** deployment](/content/guides/windsurf/cascade-bean-creation-cycle/index.html) [**Cascade Regex Pattern Causes Performance Catastrophe** performance](/content/guides/windsurf/cascade-regex-performance-catastrophic/index.html) [**Cascade String Comparison Locale Bug** ui](/content/guides/windsurf/cascade-string-comparison-locale-issue/index.html) [**Cascade Generated Annotation Not Recognized** deployment](/content/guides/windsurf/cascade-annotation-not-recognized/index.html) [**Cascade Broke Object Serialization Format** database](/content/guides/windsurf/cascade-serialization-mismatch/index.html) [**Windsurf Credits Ran Out? Here's What to Do** credits](/content/guides/windsurf/credits-ran-out/index.html) [**Email Attachments Not Sending in Windsurf App** email](/content/guides/windsurf/email-attachments-not-sending/index.html) [**Windsurf Generated Code Using eval() or Function Constructor** security](/content/guides/windsurf/eval-in-generated-code/index.html) [**Windsurf Committed API Keys and Secrets to Git Repository** security](/content/guides/windsurf/credentials-committed-to-git/index.html) [**Windsurf Generated API Routes Without Auth Middleware** security](/content/guides/windsurf/missing-auth-middleware/index.html) [**Multer File Upload Crashing in Windsurf App** storage](/content/guides/windsurf/multer-file-upload-crashing/index.html) [**Signed URLs Expiring Too Fast in Windsurf App** storage](/content/guides/windsurf/signed-urls-expiring-too-fast/index.html) [**Blob Storage Corrupting Uploaded Files in Windsurf App** storage](/content/guides/windsurf/blob-storage-corrupting-files/index.html) [**Flexbox Content Overflowing on Mobile in Windsurf App** mobile](/content/guides/windsurf/flexbox-overflow-on-mobile/index.html) [**Fixed Position Elements Broken in iOS Safari on Windsurf App** mobile](/content/guides/windsurf/fixed-position-broken-ios-safari/index.html) [**Font Sizes Too Small on Mobile in Windsurf App** mobile](/content/guides/windsurf/font-sizes-too-small-mobile/index.html) [**Nodemailer TLS Handshake Failed in Windsurf App** email](/content/guides/windsurf/nodemailer-tls-handshake-failed/index.html) [**Bulk Email Sending Rate Limited in Windsurf App** email](/content/guides/windsurf/bulk-email-rate-limited/index.html) [**Socket.io Rooms Not Working in Windsurf App** realtime](/content/guides/windsurf/socketio-rooms-not-working/index.html) [**User Presence Showing Wrong Online/Offline Status in Windsurf App** realtime](/content/guides/windsurf/presence-showing-wrong-status/index.html) [**Database Change Streams Not Firing in Windsurf App** realtime](/content/guides/windsurf/db-change-streams-not-firing/index.html) [**NPM Conflicting Peer Dependencies in Windsurf Project** integration](/content/guides/windsurf/npm-conflicting-peer-dependencies/index.html) [**Dockerfile Missing System Dependencies in Windsurf Project** integration](/content/guides/windsurf/dockerfile-missing-system-dependencies/index.html) [**Jest Mocking Not Working with ESM in Windsurf Project** testing](/content/guides/windsurf/jest-mocking-not-working-esm/index.html) [**API Tests Hitting Real Endpoints in Windsurf Project** testing](/content/guides/windsurf/api-tests-hitting-real-endpoints/index.html)

## [Replit](/content/guides/replit/index.html)

72 guides

[**Multipart Form File Upload Issues on Replit** api](/content/guides/replit/replit-multipart-form-upload/index.html) [**SQL Injection Vulnerability on Replit** database](/content/guides/replit/replit-sql-injection-vulnerability/index.html) [**High Token Usage from AI Agent on Replit** performance](/content/guides/replit/replit-agent-high-token-usage/index.html) [**AI Agent Accuracy Poor on Replit** performance](/content/guides/replit/replit-agent-accuracy-poor/index.html) [**Thymeleaf Static Resource Caching Issues** ui](/content/guides/replit/replit-thymeleaf-static-resource-caching/index.html) [**Kotlin Compilation Error on Replit** deployment](/content/guides/replit/replit-kotlin-compilation-error/index.html) [**OAuth Setup Failing on Replit** auth](/content/guides/replit/replit-auth-oauth-setup/index.html) [**Session Lost After Replit Restart** auth](/content/guides/replit/replit-session-lost-on-refresh/index.html) [**GitHub Token Rejected on Replit** auth](/content/guides/replit/replit-auth-github-token-invalid/index.html) [**Two-Factor Authentication Required for Replit Secrets** auth](/content/guides/replit/replit-two-factor-auth-required/index.html) [**PostgreSQL Connection Refused on Replit** database](/content/guides/replit/replit-postgres-connection-refused/index.html) [**PostgreSQL Max Connections Exceeded** database](/content/guides/replit/replit-postgres-max-connections/index.html) [**Flyway Database Migration Failed on Replit** database](/content/guides/replit/replit-postgres-migration-failed/index.html) [**SQLite Database Locked on Replit** database](/content/guides/replit/replit-sqlite-database-locked/index.html) [**Slow Database Queries on Replit** database](/content/guides/replit/replit-database-slow-queries/index.html) [**HikariCP Connection Pool Misconfigured** database](/content/guides/replit/replit-connection-pooling-issue/index.html) [**App Crashes Immediately After Deploy on Replit** deployment](/content/guides/replit/replit-app-crashes-on-deploy/index.html) [**Port Already in Use on Replit** deployment](/content/guides/replit/replit-port-already-in-use/index.html) [**.replit Config File Invalid on Replit** deployment](/content/guides/replit/replit-dot-replit-config-invalid/index.html) [**Reserved VM Insufficient Memory** deployment](/content/guides/replit/replit-reserved-vm-insufficient-memory/index.html) [**Deployment Timeout on Replit** deployment](/content/guides/replit/replit-deployment-timeout/index.html) [**Static Files Not Serving on Replit** ui](/content/guides/replit/replit-static-files-not-serving/index.html) [**Thymeleaf Template Processing Error on Replit** ui](/content/guides/replit/replit-thymeleaf-template-error/index.html) [**WebSocket Connection Failed on Replit** ui](/content/guides/replit/replit-websocket-connection-failed/index.html) [**Mobile Responsive Design Broken on Replit** ui](/content/guides/replit/replit-mobile-responsive-broken/index.html) [**CORS Preflight Request Blocked on Replit** api](/content/guides/replit/replit-cors-preflight-blocked/index.html) [**API Endpoint Returns 404 on Replit** api](/content/guides/replit/replit-api-endpoint-404/index.html) [**External API Calls Timing Out on Replit** api](/content/guides/replit/replit-external-api-timeout/index.html) [**Third-Party API Rate Limiting on Replit** api](/content/guides/replit/replit-api-rate-limited/index.html) [**JSON Parsing Error in API Response** api](/content/guides/replit/replit-json-parsing-error/index.html) [**Slow Application Startup on Replit** performance](/content/guides/replit/replit-slow-app-startup/index.html) [**High Memory Usage on Replit** performance](/content/guides/replit/replit-high-memory-usage/index.html) [**Slow Cold Start on Replit** performance](/content/guides/replit/replit-slow-cold-start/index.html) [**Nix Environment Missing Dependency** performance](/content/guides/replit/replit-nix-environment-missing/index.html) [**Gradle Build Very Slow on Replit** performance](/content/guides/replit/replit-gradle-build-slow/index.html) [**AI Agent Loops Forever on Replit** performance](/content/guides/replit/replit-agent-infinite-loop/index.html) [**Async Request Timeout on Replit** performance](/content/guides/replit/replit-async-request-timeout/index.html) [**Spring Actuator Endpoints Returning 401** api](/content/guides/replit/replit-spring-actuator-endpoints/index.html) [**Stripe Webhook Signature Invalid on Replit** api](/content/guides/replit/replit-stripe-webhook-signature-invalid/index.html) [**Using Stripe Test Keys in Production** api](/content/guides/replit/replit-stripe-test-mode-production/index.html) [**Stripe Idempotency Key Not Implemented** api](/content/guides/replit/replit-stripe-idempotency-key/index.html) [**Stripe Webhook Not Triggering on Replit** api](/content/guides/replit/replit-payment-webhook-not-firing/index.html) [**Environment Variable Not Set on Replit** auth](/content/guides/replit/replit-environment-variable-not-set/index.html) [**Mixed HTTP/HTTPS Content on Replit** ui](/content/guides/replit/replit-https-mixed-content/index.html) [**Request Validation Failed on Replit** api](/content/guides/replit/replit-request-validation-failed/index.html) [**Circular Dependency in Spring Beans** deployment](/content/guides/replit/replit-circular-dependency/index.html) [**CSRF Token Bypass on Replit** auth](/content/guides/replit/replit-spring-security-csrf-bypass/index.html) [**Remember-Me Token Security Issue on Replit** auth](/content/guides/replit/replit-remember-me-token-exposed/index.html) [**XSS Vulnerability in Thymeleaf Templates** ui](/content/guides/replit/replit-xss-vulnerability/index.html) [**CORS Credentials and Cookies Not Sent** api](/content/guides/replit/replit-cors-credentials-cookie/index.html) [**Gradle Version Mismatch on Replit** deployment](/content/guides/replit/replit-gradle-version-mismatch/index.html) [**Replit AI Credits Ran Out? Here's What to Do** credits](/content/guides/replit/credits-ran-out/index.html) [**Secrets Visible in Replit History** security](/content/guides/replit/replit-secrets-visible-in-history/index.html) [**Admin Routes Accessible Without Authentication on Replit** security](/content/guides/replit/replit-unprotected-admin-routes/index.html) [**Session Fixation Vulnerability in Replit App** security](/content/guides/replit/replit-session-fixation-vulnerability/index.html) [**Replit Filesystem Wiped on Redeploy** storage](/content/guides/replit/replit-filesystem-wiped-on-redeploy/index.html) [**SQLite Database Lost After Replit Restart** storage](/content/guides/replit/replit-sqlite-lost-after-restart/index.html) [**File Uploads Disappearing on Replit** storage](/content/guides/replit/replit-file-uploads-disappearing/index.html) [**Replit-Hosted App Layout Broken on Phone** mobile](/content/guides/replit/replit-layout-broken-on-phone/index.html) [**PWA Install Not Working on Replit-Hosted App** mobile](/content/guides/replit/replit-pwa-install-not-working/index.html) [**Mobile Safari Back Button Breaking SPA on Replit** mobile](/content/guides/replit/replit-mobile-safari-back-button-breaking-spa/index.html) [**Email Sending Blocked on Replit Free Tier** email](/content/guides/replit/replit-email-sending-blocked-free-tier/index.html) [**SendGrid API Returning 403 on Replit** email](/content/guides/replit/replit-sendgrid-api-returning-403/index.html) [**Email HTML Stripped by Email Clients** email](/content/guides/replit/replit-email-html-stripped-by-clients/index.html) [**Replit WebSocket Proxy Disconnecting** realtime](/content/guides/replit/replit-websocket-proxy-disconnecting/index.html) [**Database Polling Overloading Replit Free Tier Resources** realtime](/content/guides/replit/replit-database-polling-overloading/index.html) [**GitHub Import Missing Files on Replit** integration](/content/guides/replit/replit-github-import-missing-files/index.html) [**Replit Secrets Not Loading in Modules** integration](/content/guides/replit/replit-secrets-not-loading-in-modules/index.html) [**MongoDB Atlas Connection Timeout from Replit** integration](/content/guides/replit/replit-mongodb-atlas-connection-timeout/index.html) [**Test Runner Out of Memory on Replit** testing](/content/guides/replit/replit-test-runner-out-of-memory/index.html) [**Slow Test Suite Blocking Deployment on Replit** testing](/content/guides/replit/replit-slow-test-suite-blocking-deployment/index.html) [**Test Fixtures Not Cleaning Up on Replit** testing](/content/guides/replit/replit-test-fixtures-not-cleaning-up/index.html)

## [Lovable](/content/guides/lovable/index.html)

74 guides

[**Tailwind Config Changes Not Reflecting in Dev** ui](/content/guides/lovable/tailwind-config-not-reloading/index.html) [**Supabase Auth Session Not Persisting Across Page Reloads** auth](/content/guides/lovable/supabase-auth-not-persisting/index.html) [**Row Level Security (RLS) Policy Blocks All Database Access** auth](/content/guides/lovable/supabase-rls-policy-blocks-all-access/index.html) [**OAuth Callback URL Mismatch with GitHub/Google Provider** auth](/content/guides/lovable/oauth-callback-url-mismatch/index.html) [**JWT Token Expires Silently Causing Unexpected Logout** auth](/content/guides/lovable/jwt-token-expiration-silent-logout/index.html) [**Data Not Saving to Supabase Database** database](/content/guides/lovable/data-not-saving-to-supabase/index.html) [**Realtime Subscriptions Not Receiving Updates** database](/content/guides/lovable/supabase-realtime-not-updating/index.html) [**Database Migration Fails During Deployment** database](/content/guides/lovable/database-migration-fails-on-deploy/index.html) [**Foreign Key Constraint Violation on Delete/Update** database](/content/guides/lovable/foreign-key-constraint-violation/index.html) [**N+1 Query Problem Causing Slow Database Performance** database](/content/guides/lovable/n-plus-one-query-performance/index.html) [**CORS Error in Production Blocking Supabase Requests** deployment](/content/guides/lovable/supabase-cors-error-production/index.html) [**Vite Build Produces Blank Page in Production** deployment](/content/guides/lovable/vite-build-blank-page-production/index.html) [**Environment Variables Undefined in Production Build** deployment](/content/guides/lovable/environment-variables-undefined-production/index.html) [**Mobile Layout Broken on Small Screens** ui](/content/guides/lovable/mobile-layout-broken-responsive/index.html) [**Tailwind CSS Classes Not Applying or Conflicting** ui](/content/guides/lovable/tailwind-styles-not-applying/index.html) [**Dark Mode Not Toggling or Persisting** ui](/content/guides/lovable/dark-mode-not-working/index.html) [**React Form Input Values Not Updating or Showing Stale Data** ui](/content/guides/lovable/react-form-values-not-updating/index.html) [**Modal or Dialog Not Closing Properly** ui](/content/guides/lovable/modal-dialog-not-closing/index.html) [**Supabase Edge Function Timeouts or Fails to Execute** api](/content/guides/lovable/supabase-edge-function-timeout/index.html) [**Webhook Not Receiving Events from Supabase** api](/content/guides/lovable/webhook-not-receiving-events/index.html) [**Third-Party API Calls Blocked by CORS** api](/content/guides/lovable/third-party-api-cors-blocked/index.html) [**Stripe Webhook Signature Verification Failing** api](/content/guides/lovable/stripe-webhook-not-verifying/index.html) [**Slow Initial Page Load and Time to Interactive** performance](/content/guides/lovable/slow-initial-page-load/index.html) [**React Components Re-rendering Excessively** performance](/content/guides/lovable/react-component-re-renders-excessive/index.html) [**Images Not Optimized Causing Large File Sizes** performance](/content/guides/lovable/images-not-optimized/index.html) [**RLS Allows SELECT But Blocks INSERT/UPDATE** database](/content/guides/lovable/supabase-rls-select-but-insert-fails/index.html) [**Form Submission Race Condition - Multiple Submissions or Lost Data** ui](/content/guides/lovable/form-submission-race-condition/index.html) [**Vite Hot Module Replacement (HMR) Connection Fails** deployment](/content/guides/lovable/vite-hmr-connection-fails/index.html) [**Supabase Storage Bucket CORS Error on Upload** deployment](/content/guides/lovable/supabase-bucket-cors-uploads/index.html) [**Memory Leak from Unremoved Event Listeners** performance](/content/guides/lovable/memory-leak-event-listeners/index.html) [**Dev Server HTTPS Needed for Secure Features** deployment](/content/guides/lovable/localhost-https-dev-server/index.html) [**Edge Function Cold Starts Causing Slow First Invocation** performance](/content/guides/lovable/supabase-functions-cold-start/index.html) [**Auth State Lost During Navigation or Redirect** auth](/content/guides/lovable/auth-state-lost-navigation/index.html) [**React Hook Dependency Warning - Stale Closures** ui](/content/guides/lovable/react-hook-dependency-warning/index.html) [**Supabase Anon Key Exposed in Client Code** auth](/content/guides/lovable/supabase-anon-key-exposed/index.html) [**CSS Specificity Issues - Can't Override Styles** ui](/content/guides/lovable/css-specificity-override-issues/index.html) [**Stripe Test vs Live Mode Confusion** api](/content/guides/lovable/stripe-test-mode-vs-live/index.html) [**Zustand State Not Updating in Components** ui](/content/guides/lovable/zustand-state-not-updating/index.html) [**Vite Path Aliases Not Resolving in Build** deployment](/content/guides/lovable/vite-alias-import-not-working/index.html) [**React Context Returns Undefined - Missing Provider** ui](/content/guides/lovable/react-context-provider-missing/index.html) [**Testing Supabase Edge Functions Locally** api](/content/guides/lovable/supabase-function-local-testing/index.html) [**Image Optimization in Vite React vs Next.js** performance](/content/guides/lovable/next-image-optimization/index.html) [**Database Connection Pool Exhaustion** database](/content/guides/lovable/supabase-database-connection-pool/index.html) [**TypeScript Strict Mode Type Errors** ui](/content/guides/lovable/typescript-strict-mode-errors/index.html) [**Unhandled React Error Crashing App** ui](/content/guides/lovable/react-error-boundary/index.html) [**Browser Cache Blocking App Updates** deployment](/content/guides/lovable/browser-cache-blocking-updates/index.html) [**Console Logging Slowing Down React Render** performance](/content/guides/lovable/console-log-blocking-render/index.html) [**Querying Supabase JSON Columns Fails** database](/content/guides/lovable/supabase-json-column-querying/index.html) [**CSS-in-JS Styles Not Applying in Build** deployment](/content/guides/lovable/vite-css-in-js-not-compiling/index.html) [**React Key Prop Warning in Lists** ui](/content/guides/lovable/react-key-prop-warning/index.html) [**Infinite Loop Caused by Missing Dependency** ui](/content/guides/lovable/infinite-loop-caused-by-dependency/index.html) [**Supabase Admin Client Bypasses RLS for Backend** auth](/content/guides/lovable/supabase-rls-bypass-with-admin/index.html) [**React Fragment Key Warning - No Key Prop** ui](/content/guides/lovable/react-fragment-warning/index.html) [**Lovable Credits Ran Out? Here's What to Do** credits](/content/guides/lovable/credits-ran-out/index.html) [**API Keys Exposed in Lovable Frontend Code** security](/content/guides/lovable/api-keys-exposed-in-frontend/index.html) [**XSS Vulnerability in Lovable App User Input** security](/content/guides/lovable/xss-vulnerability-user-input/index.html) [**Insecure File Upload in Lovable App** security](/content/guides/lovable/insecure-file-upload/index.html) [**CORS Misconfiguration in Lovable App** security](/content/guides/lovable/cors-misconfiguration/index.html) [**Image Upload Failing or Corrupted in Lovable** storage](/content/guides/lovable/image-upload-failing/index.html) [**File Storage Quota Exceeded in Lovable App** storage](/content/guides/lovable/storage-quota-exceeded/index.html) [**Large File Downloads Timing Out in Lovable App** storage](/content/guides/lovable/large-file-download-timeout/index.html) [**Responsive Layout Broken on Mobile in Lovable App** mobile](/content/guides/lovable/responsive-layout-broken-mobile/index.html) [**Touch Gestures Not Working in Lovable App** mobile](/content/guides/lovable/touch-gestures-not-working/index.html) [**Mobile Keyboard Pushing Content Off Screen in Lovable** mobile](/content/guides/lovable/mobile-keyboard-pushing-content/index.html) [**Transactional Emails Going to Spam from Lovable App** email](/content/guides/lovable/transactional-emails-going-to-spam/index.html) [**Email Verification Flow Broken in Lovable App** email](/content/guides/lovable/email-verification-broken/index.html) [**Email Template Variables Showing Blank in Lovable App** email](/content/guides/lovable/email-template-variables-blank/index.html) [**Real-Time Database Sync Not Updating in Lovable** realtime](/content/guides/lovable/realtime-database-sync-broken/index.html) [**Lovable Live Preview Not Reflecting Code Changes** realtime](/content/guides/lovable/live-preview-not-reflecting-changes/index.html) [**WebSocket Connection Dropping in Lovable App** realtime](/content/guides/lovable/websocket-connection-dropping/index.html) [**Stripe Checkout Not Working in Production in Lovable App** integration](/content/guides/lovable/stripe-checkout-not-working-production/index.html) [**Google Maps Not Loading in Lovable App** integration](/content/guides/lovable/google-maps-not-loading/index.html) [**Social Media Sharing Preview Broken in Lovable App** integration](/content/guides/lovable/social-sharing-preview-broken/index.html) [**Google Analytics Not Tracking in Lovable App** integration](/content/guides/lovable/analytics-not-tracking/index.html)

## [Cursor](/content/guides/cursor/index.html)

70 guides

[**OAuth Token Refresh Fails After Cursor AI Refactor** auth](/content/guides/cursor/oauth-token-refresh-failure/index.html) [**JWT Signature Invalid After Cursor Code Generation** auth](/content/guides/cursor/jwt-signature-invalid-after-refactor/index.html) [**Express Middleware Execution Order Broken After AI Edit** auth](/content/guides/cursor/middleware-execution-order-broken/index.html) [**Redis Session Storage Fails After Cursor Refactor** auth](/content/guides/cursor/sessions-not-persisting-redis/index.html) [**CSRF Protection Accidentally Disabled by Cursor** auth](/content/guides/cursor/csrf-token-validation-disabled/index.html) [**Database Migration Rollback Fails After Cursor Changes** database](/content/guides/cursor/database-migration-rollback-failed/index.html) [**ORM Query Syntax Broken After Cursor Code Generation** database](/content/guides/cursor/orm-query-syntax-error/index.html) [**Database Connection Pool Exhausted After Refactoring** database](/content/guides/cursor/connection-pool-exhaustion/index.html) [**N+1 Query Problem After Cursor ORM Refactoring** database](/content/guides/cursor/n-plus-one-query-problem/index.html) [**Docker Build Fails After Cursor Code Changes** deployment](/content/guides/cursor/deployment-docker-build-failure/index.html) [**Environment Variables Not Loading in Production** deployment](/content/guides/cursor/env-variables-not-loading/index.html) [**GitHub Actions CI/CD Workflow Fails After Changes** deployment](/content/guides/cursor/github-actions-workflow-broken/index.html) [**Build Command Broken After Cursor Project Reorganization** deployment](/content/guides/cursor/build-command-no-longer-works/index.html) [**React Component No Longer Renders After Cursor Refactoring** ui](/content/guides/cursor/react-component-rendering-broken/index.html) [**CSS Styles Not Applied After Cursor File Move** ui](/content/guides/cursor/css-styles-not-applying/index.html) [**Mobile Responsive Design Broken After Refactoring** ui](/content/guides/cursor/responsive-design-broken/index.html) [**State Management Not Working After Refactoring** ui](/content/guides/cursor/state-management-broken/index.html) [**API Endpoint Type Mismatch After Cursor TypeScript Update** api](/content/guides/cursor/api-endpoint-type-mismatch/index.html) [**API Route Returns 404 After Refactoring** api](/content/guides/cursor/api-route-returning-404/index.html) [**Import Paths Broken After File Reorganization** api](/content/guides/cursor/import-path-wrong-after-move/index.html) [**API Request Missing Required Headers After Refactoring** api](/content/guides/cursor/api-request-missing-headers/index.html) [**API Response Parsing Fails After Cursor Refactoring** api](/content/guides/cursor/api-response-parsing-error/index.html) [**Bundle Size Increased After Cursor Refactoring** performance](/content/guides/cursor/bundle-size-increased/index.html) [**React Components Rerendering Excessively** performance](/content/guides/cursor/react-unnecessary-rerenders/index.html) [**Memory Leak After Cursor Refactored Cleanup Code** performance](/content/guides/cursor/memory-leak-detected/index.html) [**Database Query Performance Degraded** performance](/content/guides/cursor/database-query-slow/index.html) [**API Rate Limit Exceeded After Changes** performance](/content/guides/cursor/api-rate-limit-exceeded/index.html) [**React Error Boundary Missing After Cleanup** ui](/content/guides/cursor/error-boundary-missing/index.html) [**Form Validation Logic Removed by Cursor** ui](/content/guides/cursor/form-validation-removed/index.html) [**Button onClick Handler Not Firing After Changes** ui](/content/guides/cursor/button-onclick-not-firing/index.html) [**Modal Dialog Stuck Open After Refactoring** ui](/content/guides/cursor/modal-dialog-not-closing/index.html) [**Images Not Loading After Path Changes** ui](/content/guides/cursor/image-not-loading/index.html) [**Async/Await Promise Chain Broken** api](/content/guides/cursor/async-await-chain-broken/index.html) [**CORS Headers Missing After API Refactoring** api](/content/guides/cursor/cors-headers-missing/index.html) [**TypeScript Strict Mode Errors After Refactoring** api](/content/guides/cursor/typescript-strict-mode-errors/index.html) [**Webpack Configuration Broken After Edit** deployment](/content/guides/cursor/webpack-config-broken/index.html) [**Prisma Migration Fails After Schema Changes** database](/content/guides/cursor/prisma-migration-failed/index.html) [**Next.js Build Error After Changes** deployment](/content/guides/cursor/next-js-build-error/index.html) [**Complete Authentication Flow Broken** auth](/content/guides/cursor/authentication-flow-broken/index.html) [**Event Listener Added Multiple Times** ui](/content/guides/cursor/event-listener-duplicated/index.html) [**Infinite Loop Causes App Hang** performance](/content/guides/cursor/infinite-loop-hang/index.html) [**Translations Missing After i18n Changes** ui](/content/guides/cursor/locale-translation-missing/index.html) [**Stripe Webhook Endpoint Not Receiving Events** api](/content/guides/cursor/stripe-webhook-not-received/index.html) [**Supabase Authentication Integration Broken** auth](/content/guides/cursor/supabase-auth-broken/index.html) [**GraphQL Query Syntax Error After Refactoring** api](/content/guides/cursor/graphql-query-syntax-error/index.html) [**Hot Module Reload Broken in Webpack Dev Server** deployment](/content/guides/cursor/webpack-dev-server-not-hot-reload/index.html) [**Cache-Control Headers Set Incorrectly** performance](/content/guides/cursor/caching-header-incorrect/index.html) [**Database Transaction Not Atomic After Changes** database](/content/guides/cursor/database-transaction-not-atomic/index.html) [**HTML Escaping Removed, Creating XSS Vulnerability** security](/content/guides/cursor/html-escaping-xss-vulnerability/index.html) [**Hardcoded API Keys and Secrets in Cursor-Generated Code** security](/content/guides/cursor/hardcoded-secrets-in-generated-code/index.html) [**Cursor AI Credits Ran Out? Here's What to Do** credits](/content/guides/cursor/credits-ran-out/index.html) [**Cursor Installed Vulnerable or Outdated Dependencies** security](/content/guides/cursor/vulnerable-dependencies-generated/index.html) [**CSRF Protection Missing in Cursor-Generated Forms and APIs** security](/content/guides/cursor/csrf-protection-missing/index.html) [**File System Operations Failing in Production After Cursor Build** storage](/content/guides/cursor/filesystem-ops-failing-production/index.html) [**S3 Access Denied Errors in Cursor-Generated AWS Code** storage](/content/guides/cursor/s3-access-denied-errors/index.html) [**SQLite Database Locking and Concurrency Errors After Cursor Build** storage](/content/guides/cursor/sqlite-locking-issues/index.html) [**CSS Media Queries Not Applying in Cursor-Generated Styles** mobile](/content/guides/cursor/media-queries-not-applying/index.html) [**Viewport Meta Tag Misconfigured or Missing in Cursor Project** mobile](/content/guides/cursor/viewport-meta-misconfigured/index.html) [**CSS Grid Layout Breaking on Small Screens in Cursor App** mobile](/content/guides/cursor/css-grid-breaking-small-screens/index.html) [**SMTP Connection Refused in Production for Cursor-Generated Email Code** email](/content/guides/cursor/smtp-connection-refused-production/index.html) [**HTML Email Rendering Broken Across Email Clients** email](/content/guides/cursor/html-email-rendering-issues/index.html) [**Email Queue Backing Up and Delays in Cursor Application** email](/content/guides/cursor/email-queue-backing-up/index.html) [**Server-Sent Events Disconnecting in Cursor Application** realtime](/content/guides/cursor/sse-disconnecting-unexpectedly/index.html) [**Polling Causing Excessive API Calls in Cursor-Built App** realtime](/content/guides/cursor/polling-excessive-api-calls/index.html) [**Docker Networking Issues in Cursor-Generated Docker Compose** integration](/content/guides/cursor/docker-networking-issues/index.html) [**CI/CD Pipeline Failing on Cursor-Generated Code** integration](/content/guides/cursor/cicd-failing-generated-code/index.html) [**Vercel and Netlify Build Errors on Cursor-Generated Projects** integration](/content/guides/cursor/vercel-netlify-build-errors/index.html) [**Cursor-Generated Unit Tests Failing Immediately** testing](/content/guides/cursor/generated-tests-failing/index.html) [**Mock Data Schema Mismatch in Cursor-Generated Tests** testing](/content/guides/cursor/mock-data-schema-mismatch/index.html) [**E2E Tests Timing Out in Cursor-Generated Test Suites** testing](/content/guides/cursor/e2e-tests-timing-out/index.html)

## [v0](/content/guides/v0/index.html)

58 guides

[**NextAuth.js Infinite Redirect Loop on Callback** auth](/content/guides/v0/nextauth-callback-redirect-loop/index.html) [**Clerk and NextAuth.js Conflicting Auth Headers** auth](/content/guides/v0/nextauth-clerk-dual-auth-conflict/index.html) [**Protected Routes Return Undefined Session in Server Components** auth](/content/guides/v0/protected-routes-undefined-session/index.html) [**Clerk Missing Environment Variables Error** auth](/content/guides/v0/clerk-missing-env-variables/index.html) [**Prisma Database Connection Timeout** database](/content/guides/v0/prisma-connection-timeout/index.html) [**Prisma Migration Conflict After Schema Changes** database](/content/guides/v0/prisma-migration-conflict/index.html) [**Drizzle ORM Type Generation Failed** database](/content/guides/v0/drizzle-type-generation-failed/index.html) [**Vercel Postgres Connection String Not Found** database](/content/guides/v0/vercel-postgres-connection-string/index.html) [**Neon Database Timeout in Production** database](/content/guides/v0/neon-database-timeout-production/index.html) [**Hydration Mismatch from Date/Time Rendering** ui](/content/guides/v0/hydration-mismatch-date-rendering/index.html) [**Client Component Not Rendering in App Router** ui](/content/guides/v0/component-not-rendering-app-router/index.html) [**shadcn/ui Styling Conflicts with Tailwind** ui](/content/guides/v0/shadcn-ui-tailwind-conflict/index.html) [**Tailwind Responsive Classes Not Working on Mobile** ui](/content/guides/v0/tailwind-responsive-breakpoints-mobile/index.html) [**Next.js Image Optimization Not Working** ui](/content/guides/v0/next-image-not-optimizing/index.html) [**Next.js API Route Returns 404 on POST Request** api](/content/guides/v0/api-route-not-found-post/index.html) [**Next.js Server Action Not Callable from Client Component** api](/content/guides/v0/server-action-not-callable/index.html) [**tRPC Procedure Undefined or Not Found** api](/content/guides/v0/trpc-procedure-undefined/index.html) [**Next.js Middleware Not Executing on Protected Routes** api](/content/guides/v0/middleware-not-executing/index.html) [**Vercel Build Failure: Static Generation Failed** deployment](/content/guides/v0/vercel-build-failure-static-generation/index.html) [**Vercel Environment Variables Not Loading in Deployment** deployment](/content/guides/v0/vercel-env-variables-not-loading/index.html) [**Vercel Edge Runtime Import or Module Error** deployment](/content/guides/v0/vercel-edge-runtime-import-error/index.html) [**JavaScript Bundle Size Exceeds Vercel Limit** performance](/content/guides/v0/bundle-size-exceeds-limit/index.html) [**Slow Server Components Causing High Time to First Byte** performance](/content/guides/v0/slow-server-components-ttfb/index.html) [**Next.js Image Optimization Cache Not Working** performance](/content/guides/v0/image-optimization-caching-issues/index.html) [**CSS-in-JS Runtime Overhead Impacting Performance** performance](/content/guides/v0/css-in-js-runtime-overhead/index.html) [**Database N+1 Query Problem Killing Performance** performance](/content/guides/v0/database-n-plus-one-queries/index.html) [**Next.js App Directory Routing Issues and Path Confusion** ui](/content/guides/v0/nextjs-app-dir-routing-confusion/index.html) [**Form Validation Mismatch Between Client and Server** ui](/content/guides/v0/form-validation-client-server-mismatch/index.html) [**Stripe Webhook Signature Verification Failed** api](/content/guides/v0/stripe-integration-webhook-signature/index.html) [**Stripe Checkout Session Not Matching Create/Update** api](/content/guides/v0/stripe-checkout-session-mismatch/index.html) [**React Hook Form Field Not Registering or Updating** ui](/content/guides/v0/react-hook-form-field-not-registering/index.html) [**TypeScript Strict Mode Type Errors in Next.js** ui](/content/guides/v0/typescript-strict-mode-errors/index.html) [**Vercel Serverless Function Timeout** performance](/content/guides/v0/vercel-serverless-function-timeout/index.html) [**Supabase Row-Level Security 403 Forbidden Error** database](/content/guides/v0/supabase-row-level-security-403/index.html) [**Supabase Realtime Subscription Not Updating in Real-Time** database](/content/guides/v0/supabase-realtime-subscription-not-updating/index.html) [**Next.js Fetch Caching Serving Stale Data** api](/content/guides/v0/fetch-caching-stale-data/index.html) [**React useEffect Dependency Warning and Infinite Loops** ui](/content/guides/v0/react-useeffect-dependency-warning/index.html) [**NextAuth Session Not Persisting After Refresh** auth](/content/guides/v0/nextauth-session-not-persisting/index.html) [**v0 Credits Ran Out? Here's What to Do** credits](/content/guides/v0/credits-ran-out/index.html) [**API Route Exposing Sensitive Data in Response** security](/content/guides/v0/api-route-exposing-sensitive-data/index.html) [**JWT Token Not Validated Properly in API Routes** security](/content/guides/v0/jwt-token-not-validated-properly/index.html) [**Rate Limiting Missing on API Routes** security](/content/guides/v0/rate-limiting-missing-api-routes/index.html) [**Vercel Blob Upload Failing with Size or Type Errors** storage](/content/guides/v0/vercel-blob-upload-failing/index.html) [**Image Optimization Not Working with next/image** storage](/content/guides/v0/next-image-optimization-not-working/index.html) [**Static Assets Returning 404 After Deployment** storage](/content/guides/v0/static-assets-returning-404/index.html) [**Next.js Layout Shift on Mobile Devices** mobile](/content/guides/v0/nextjs-layout-shift-mobile/index.html) [**Server Components Hydration Mismatch on Mobile** mobile](/content/guides/v0/server-components-hydration-mismatch-mobile/index.html) [**Touch Carousel Not Swiping on Mobile Devices** mobile](/content/guides/v0/touch-carousel-not-swiping/index.html) [**Resend or SendGrid Integration Not Sending Emails** email](/content/guides/v0/resend-sendgrid-not-sending-emails/index.html) [**Email Preview Different from Actual Rendered Email** email](/content/guides/v0/email-preview-different-from-actual/index.html) [**Email Unsubscribe Link Not Working** email](/content/guides/v0/unsubscribe-link-not-working/index.html) [**Vercel Serverless WebSocket Connection Failing** realtime](/content/guides/v0/vercel-serverless-websocket-limitations/index.html) [**Real-Time Dashboard Not Updating Live Data** realtime](/content/guides/v0/realtime-dashboard-not-updating/index.html) [**Prisma Connection Pool Exhausted on Vercel** integration](/content/guides/v0/prisma-connection-pool-exhausted-vercel/index.html) [**Stripe Webhook Signature Verification Failing** integration](/content/guides/v0/stripe-webhook-signature-verification-failing/index.html) [**Next.js API Routes Not Testable in Unit Tests** testing](/content/guides/v0/nextjs-api-routes-not-testable/index.html) [**Component Tests Failing with React Server Components** testing](/content/guides/v0/component-tests-failing-server-components/index.html) [**Playwright Tests Timing Out on CI Pipeline** testing](/content/guides/v0/playwright-tests-timing-out-ci/index.html)

## Can't find your issue?  Real developers can help.

You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.

[Get Help](/content/auth/builder/index.html)

We use cookies to improve your experience. [Learn more](/content/privacy/index.html)

Essential OnlyAccept All