Common Issues with AI-Built Apps

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

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My AI-Built App Is Broken and I Don't Know Why general My AI App Won't Deploy or Go Live deployment Login or Signup Not Working in My AI App auth App Shows a Blank White Page After Deploy deployment Data Not Saving to Database in My AI App database My AI-Built App Is Really Slow performance App Layout Is Broken on Mobile ui Payments or Checkout Not Working in My AI App general Images Not Showing in My AI App ui Email Notifications Not Sending From My AI App general API Calls Failing With Errors in My AI App general Search Feature Not Working in My AI App general Form Validation Not Working Properly ui Users Can See or Do Things They Shouldn't auth App Styling and Design Looks Wrong or Broken ui I Hired an AI Tool to Build My Website and Now It's Broken general My AI App Crashes Randomly or Shows Error Pages general I Can't Add a New Feature Without Breaking Something general SSL Certificate Error or Site Not Secure Warning deployment Environment Variables Not Working in Production deployment Third-Party Integration Not Working (APIs, Webhooks, OAuth) general Real-Time Features Not Working (Chat, Notifications, Live Updates) general My AI App Doesn't Appear in Google Search general Password Reset Not Working auth File Upload Not Working in My AI App general Dark Mode Not Working Properly ui Navigation or Routing Not Working ui Dates and Times Showing Wrong in My App general App Not Working on Some Browsers or Devices general Can't Connect My Custom Domain to the App deployment In-App Notifications Not Showing ui I Want a Code Review Before Launching My AI-Built App general Users Can See Each Other's Private Data auth Build Errors Preventing Deployment deployment Google Says My Website Is Slow seo I Paid Someone to Build My App and Now It's Broken general My App Works on My Computer but Not When I Share the Link general I Can't Update My App After the AI Tool Made Changes general My App Loads but Shows a Blank White Screen general My App Was Working Yesterday and Now It's Completely Down general Someone Hacked My AI-Built App security My Users' Passwords Might Be Exposed security My App Is Sending Spam Emails I Didn't Create security Customers Can't Pay on My Website payments Payments Go Through but Orders Don't Appear payments Refunds Not Working on My Website payments My App Looks Terrible on Phones mobile My App Won't Install on iPhone Home Screen mobile Buttons and Links Too Small to Tap on Mobile mobile My AI-Built Website Doesn't Show Up on Google seo My Website Preview Looks Wrong on Social Media seo I Lost All My App's Data data My App Is Showing Wrong Data to Users data I Need to Export My Data but There's No Option data AI Tool Credits Ran Out and My App Isn't Finished general

Base44

60 guides

Base44 Login Page Not Loading or Showing Blank Screen auth Role-Based Access Control Not Restricting Pages in Base44 auth Base44 Email Verification Not Sending or Failing on Signup auth Google or Social Login Not Working in Base44 App auth User Sessions Expiring Too Quickly in Base44 App auth Form Submissions Not Saving to Database in Base44 database Database Relationship and Foreign Key Errors in Base44 database Unexpected Data Validation Errors When Saving Records in Base44 database CSV Data Import or Migration Failing in Base44 database Duplicate Records Being Created in Base44 Database database Computed or Formula Fields Not Updating in Base44 database Base44 App Not Loading After Publishing deployment Custom Domain Not Connecting to Base44 App deployment SSL Certificate Errors on Base44 Published App deployment Base44 App Build Failing After Recent Changes deployment Environment Variables or Secrets Not Available in Published Base44 App deployment Base44 App Page Layout Broken on Mobile Devices ui Forms Rendering Incorrectly or Missing Fields in Base44 ui Custom Styling and CSS Not Applying to Base44 Components ui Conditional Visibility Rules Not Working on Base44 Components ui Modals and Popups Not Opening or Closing Correctly in Base44 ui Data Tables and Grids Not Displaying Correctly in Base44 ui Navigation Menu Not Updating or Showing Wrong Links in Base44 ui Workflow Automations Not Triggering in Base44 api Third-Party API Integration Not Working in Base44 api Webhooks Not Receiving or Processing Data in Base44 api Email Sending Not Working in Base44 App Workflows api Stripe Payment Integration Not Working in Base44 App api Custom REST API Endpoints Returning Errors in Base44 api Zapier or Make Integration Disconnected from Base44 App api Slow Page Load Times in Base44 Application performance Large Data Sets Causing Timeouts and Crashes in Base44 performance Image Upload and Display Performance Issues in Base44 performance Dashboard Charts and Analytics Loading Slowly in Base44 performance Search Functionality Slow or Returning Wrong Results in Base44 performance File Downloads and Data Exports Timing Out in Base44 performance Real-Time Data Updates Not Reflecting in Base44 App performance PDF Generation and Report Creation Failing in Base44 api Multi-Language and Internationalization Issues in Base44 App ui File Upload Functionality Broken or Failing in Base44 ui Database Tables Publicly Accessible Without Authentication security Forms Accept Any Input Without Validation security Admin Panel Accessible Without Login security Image Gallery Thumbnails Not Generating or Displaying storage CSV Data Export Timing Out on Large Tables storage Data Tables Not Scrollable on Mobile Devices mobile Modals and Popups Cut Off on Small Mobile Screens mobile Date Picker Component Unusable on Mobile Phones mobile Automated Workflow Emails Not Triggering email Email Template Editor Saves Blank Content email Email Reply-To Address Not Set, Replies Lost email Dashboard Charts Showing Stale Data, Not Refreshing realtime Multiple Users Editing Same Record Overwrite Each Other realtime In-App Notification Bell Not Showing New Notifications realtime Zapier Webhook Integration Not Triggering integration Google Sheets Sync Dropping or Duplicating Records integration Scheduled Workflow Running at Wrong Times or Not at All testing Form Conditional Logic Not Showing or Hiding Fields testing Calculated Fields Returning Wrong Values testing Base44 Credits Ran Out? Here's What to Do credits

Claude Code

63 guides

Database Transaction Not Rolled Back on Error database OAuth Token Lost Between Sessions auth GitHub Token Missing Required Scopes auth Authentication Middleware Not Blocking Unauthenticated Requests auth Database Migration Silently Fails, Schema Mismatch database ORM Lazy Loading Disabled, Performance Regression database Database Seed Data Not Loaded on Startup database Docker Build Fails Due to Dependency Conflicts deployment CI/CD Pipeline Missing Environment Variables deployment Gradle Build Cache Causes Stale Artifacts deployment UI Component Not Rendering After State Update ui CSS Styles Not Applied, Specificity Issue ui Form Validation Logic Partially Implemented ui Frontend Not Integrated with API Endpoint api Webhook Handler Not Processing Events api Stripe Webhook Events Not Being Processed api API Response Structure Doesn't Match Frontend Expectations api N+1 Query Problem Causing Performance Degradation performance Memory Leak in Long-Running Background Job performance Inefficient Algorithm Causing Request Timeouts performance Dependency Adding 500KB to Bundle Size performance Race Condition in Async State Updates performance Configuration File Not Loaded from Environment auth Circular Dependency Breaking Application Startup auth Permission Denied When Writing Files deployment SSL Certificate Validation Failure on HTTPS Calls deployment Server-Side Template Syntax Errors ui Event Handler Not Triggered on Click ui CORS Preflight Request Failing api JWT Token Validation Failing Unexpectedly auth Password Hashing Not Secure Enough auth SQL Injection Vulnerability in Query auth XSS Vulnerability in Template Output ui Database Deadlock in Concurrent Updates database Redis Connection Pool Exhaustion database Callback Hell Making Code Unmaintainable performance Memory Overflow from String Concatenation in Loop performance WebSocket Connection Dropped Unexpectedly api CORS Wildcard Allow-Origin Too Permissive auth Rate Limiting Not Enforced on API Endpoint api Logging Configuration Not Producing Output deployment Bean Validation Annotations Not Triggered api Command Injection Vulnerability in AI-Generated Code security API Keys and Secrets Hardcoded in Source Code security Missing Input Validation on API Endpoints security File Write Operations Failing with Permission Errors storage Temporary Files Accumulating and Filling Disk Space storage Binary Files Corrupted During Upload or Processing storage Responsive Layout Breaks Below 375px Screen Width mobile Forms Unusable on Mobile Devices mobile Background Scroll Not Locked When Modal Is Open mobile Email Sending Fails After API Deprecation email Transactional Emails Delayed by Minutes or Hours email No Bounce Handling Causing Sender Reputation Damage email WebSocket Drops Connection with No Automatic Reconnection realtime Event-Driven Architecture Bottlenecking Under Load realtime Race Conditions Causing Data Corruption on Concurrent Updates realtime Docker Compose Services Fail to Connect Due to Wrong Names integration GitHub Actions Workflow Failing with Cryptic Errors integration Tests Pass but Contain Wrong Assertions That Miss Bugs testing Critical Business Logic Has No Test Coverage testing Integration Tests Fail Randomly Due to Shared State testing Claude Code Usage Limit Hit? Here's What to Do credits

Bolt

69 guides

OAuth2 Provider Not Configured - Missing Client ID auth Session Lost on Page Refresh - Auth State Not Persisting auth Protected Routes Redirecting Unauthenticated Users Incorrectly auth JWT Token Validation Fails - Invalid Signature or Expiration auth Prisma Connection Pool Exhausted - Cannot Connect to Database database Prisma Migration Failed - Schema Mismatch database Supabase Connection Timeout - Auth or Database Requests Hang database Firebase Auth Not Initializing - Authentication Fails database Blank Page After Deploy to Vercel/Netlify deployment Environment Variables Not Loading - Undefined in Build deployment Build Fails - Memory Limit Exceeded or Process Killed deployment Vercel Serverless Function Timeout - API Routes Taking Too Long deployment Netlify Build Plugin Configuration Error deployment React Component Not Rendering - Component Returns Nothing ui Tailwind CSS Classes Not Applying - Styles Ignored ui Hydration Mismatch Error - Server and Client Render Different Content ui React State Not Updating - Component Doesn't Re-render ui Event Handlers Not Firing - onClick, onChange Not Working ui Image Element Not Displaying - src Attribute Issues ui Form Submission Not Working - Form Doesn't Send Data ui API Route Returns 500 Error - Internal Server Error api CORS Error - Cross-Origin Request Blocked api API Request Timeout - Endpoint Takes Too Long api Webhook Not Receiving Requests - Events Not Triggered api Payment Processing Failed - Stripe Integration Error api Slow Bundle Build Time - Build Takes Too Long performance Large Bundle Size - App Loads Slowly performance Memory Leak - Component Doesn't Clean Up Resources performance WebContainer Slow Startup - App Takes Time to Boot performance React Re-rendering Causing Performance Issues - Slow Interactions performance ESLint Error Blocking Build - Build Fails on Lint deployment TypeScript Compilation Error - Type Mismatch deployment Dependency Version Conflict - Incompatible Package Versions deployment Next.js Image Component Optimization Error ui Font Loading Causing Layout Shift - FOUT or FOIT performance Modal Dialog Accessibility Issues - Focus Trap Not Working ui Form Validation Not Working - Errors Not Showing ui Infinite Redirect Loop - Auth Redirect Not Ending auth CORS Preflight Request Timeout - OPTIONS Request Failing api Rate Limit Exceeded - Too Many API Requests api Database Query Timeout - Complex Queries Too Slow database Database Connection Leak - Connections Never Close database Redis Cache Returning Stale Data - Cache Not Invalidating database GraphQL Query Too Deep - Nested Query Recursion Attack api WebSocket Connection Fails - Real-time Features Not Working api Long-Running Job Timeout - Background Tasks Interrupted api Email Sending Fails - Emails Never Received api File Upload Exceeds Size Limit - Large File Rejection api Missing Input Sanitization in Bolt App Forms security Environment Variables Exposed in Bolt Client Bundle security SQL Injection in Bolt AI-Generated Database Queries security Insecure Cookie Configuration in Bolt Application security File Upload Broken After Deploying Bolt App to Production storage Cloud Storage Permissions Misconfigured in Bolt App storage Image Compression and Optimization Not Working in Bolt App storage Hamburger Menu Not Opening on Mobile in Bolt App mobile Form Inputs Auto-Zooming on iOS in Bolt App mobile Bottom Navigation Bar Overlapping Page Content in Bolt App mobile Password Reset Email Never Arrives from Bolt App email Notification Emails Contain Broken Links in Bolt App email Contact Form Not Sending Emails in Bolt App email Chat Messages Not Updating in Real-Time in Bolt App realtime Live Notifications Not Working in Bolt App realtime Collaborative Editing Feature Broken in Bolt App realtime PayPal Payment Integration Errors in Bolt App integration Google OAuth Consent Screen Misconfigured in Bolt App integration Twilio SMS Messages Not Sending from Bolt App integration Firebase Push Notifications Failing in Bolt App integration Bolt.new Credits Ran Out? Here's What to Do credits

Windsurf

66 guides

Test Database Not Resetting Between Tests in Windsurf Project testing Cascade Generated OAuth Token Exposed in Code auth Cascade Created Login Redirect Loop auth Cascade Broke Redis Session Persistence auth JWT Validation Fails in Cascade-Generated Auth auth Cascade Created Conflicting Database Migrations database Cascade-Generated ORM Code Causes LazyInitializationException database Cascade Generated N+1 Query Problem database Cascade Left Database Schema Out of Sync database Cascade Build Fails - Missing Dependency deployment Cascade Modified Dockerfile - Docker Build Timeout deployment Cascade Configuration - Environment Variables Not Loaded deployment Cascade Broke CI/CD Pipeline Configuration deployment Cascade Broke Payment Form UI Components ui Cascade Broke Responsive CSS Layout ui Cascade Removed Form Validation Logic ui Cascade Generated Modal Component State Desync ui Cascade Created Duplicate API Endpoints api Cascade Modified API Response Contract api Cascade Disabled Middleware - Security Filter Broken api Cascade Broke Webhook Signature Validation api Cascade Removed Rate Limiting Configuration api Cascade Generated Code with Memory Leak performance Cascade Generated Inefficient Database Query performance Cascade Added Large Dependencies - Bundle Bloat performance Cascade Generated CPU-Intensive Loop performance Cascade WebSocket Implementation Drops Connections performance Cascade Broke Stripe Connect Setup api Cascade GitHub Integration - Fork Permission Denied api Cascade Email Queue Processing Halted api Cascade Broke Thymeleaf Template Rendering ui Cascade Disabled Cache Invalidation Logic performance Cascade Set CORS to Allow All Origins api Cascade Generated SQL Injection Vulnerability api Cascade Introduced XSS Vulnerability in Templates ui Cascade Changed Transaction Isolation Level database Cascade Disabled Scheduled Tasks deployment Cascade File Upload Without Validation api Cascade Hardcoded Encryption Keys api Cascade Generated Code Causing NPE Waves deployment Cascade Referenced Missing Classpath Resource deployment Cascade Created Spring Bean Circular Dependency deployment Cascade Regex Pattern Causes Performance Catastrophe performance Cascade String Comparison Locale Bug ui Cascade Generated Annotation Not Recognized deployment Cascade Broke Object Serialization Format database Windsurf Credits Ran Out? Here's What to Do credits Email Attachments Not Sending in Windsurf App email Windsurf Generated Code Using eval() or Function Constructor security Windsurf Committed API Keys and Secrets to Git Repository security Windsurf Generated API Routes Without Auth Middleware security Multer File Upload Crashing in Windsurf App storage Signed URLs Expiring Too Fast in Windsurf App storage Blob Storage Corrupting Uploaded Files in Windsurf App storage Flexbox Content Overflowing on Mobile in Windsurf App mobile Fixed Position Elements Broken in iOS Safari on Windsurf App mobile Font Sizes Too Small on Mobile in Windsurf App mobile Nodemailer TLS Handshake Failed in Windsurf App email Bulk Email Sending Rate Limited in Windsurf App email Socket.io Rooms Not Working in Windsurf App realtime User Presence Showing Wrong Online/Offline Status in Windsurf App realtime Database Change Streams Not Firing in Windsurf App realtime NPM Conflicting Peer Dependencies in Windsurf Project integration Dockerfile Missing System Dependencies in Windsurf Project integration Jest Mocking Not Working with ESM in Windsurf Project testing API Tests Hitting Real Endpoints in Windsurf Project testing

Replit

72 guides

Multipart Form File Upload Issues on Replit api SQL Injection Vulnerability on Replit database High Token Usage from AI Agent on Replit performance AI Agent Accuracy Poor on Replit performance Thymeleaf Static Resource Caching Issues ui Kotlin Compilation Error on Replit deployment OAuth Setup Failing on Replit auth Session Lost After Replit Restart auth GitHub Token Rejected on Replit auth Two-Factor Authentication Required for Replit Secrets auth PostgreSQL Connection Refused on Replit database PostgreSQL Max Connections Exceeded database Flyway Database Migration Failed on Replit database SQLite Database Locked on Replit database Slow Database Queries on Replit database HikariCP Connection Pool Misconfigured database App Crashes Immediately After Deploy on Replit deployment Port Already in Use on Replit deployment .replit Config File Invalid on Replit deployment Reserved VM Insufficient Memory deployment Deployment Timeout on Replit deployment Static Files Not Serving on Replit ui Thymeleaf Template Processing Error on Replit ui WebSocket Connection Failed on Replit ui Mobile Responsive Design Broken on Replit ui CORS Preflight Request Blocked on Replit api API Endpoint Returns 404 on Replit api External API Calls Timing Out on Replit api Third-Party API Rate Limiting on Replit api JSON Parsing Error in API Response api Slow Application Startup on Replit performance High Memory Usage on Replit performance Slow Cold Start on Replit performance Nix Environment Missing Dependency performance Gradle Build Very Slow on Replit performance AI Agent Loops Forever on Replit performance Async Request Timeout on Replit performance Spring Actuator Endpoints Returning 401 api Stripe Webhook Signature Invalid on Replit api Using Stripe Test Keys in Production api Stripe Idempotency Key Not Implemented api Stripe Webhook Not Triggering on Replit api Environment Variable Not Set on Replit auth Mixed HTTP/HTTPS Content on Replit ui Request Validation Failed on Replit api Circular Dependency in Spring Beans deployment CSRF Token Bypass on Replit auth Remember-Me Token Security Issue on Replit auth XSS Vulnerability in Thymeleaf Templates ui CORS Credentials and Cookies Not Sent api Gradle Version Mismatch on Replit deployment Replit AI Credits Ran Out? Here's What to Do credits Secrets Visible in Replit History security Admin Routes Accessible Without Authentication on Replit security Session Fixation Vulnerability in Replit App security Replit Filesystem Wiped on Redeploy storage SQLite Database Lost After Replit Restart storage File Uploads Disappearing on Replit storage Replit-Hosted App Layout Broken on Phone mobile PWA Install Not Working on Replit-Hosted App mobile Mobile Safari Back Button Breaking SPA on Replit mobile Email Sending Blocked on Replit Free Tier email SendGrid API Returning 403 on Replit email Email HTML Stripped by Email Clients email Replit WebSocket Proxy Disconnecting realtime Database Polling Overloading Replit Free Tier Resources realtime GitHub Import Missing Files on Replit integration Replit Secrets Not Loading in Modules integration MongoDB Atlas Connection Timeout from Replit integration Test Runner Out of Memory on Replit testing Slow Test Suite Blocking Deployment on Replit testing Test Fixtures Not Cleaning Up on Replit testing

Lovable

74 guides

Tailwind Config Changes Not Reflecting in Dev ui Supabase Auth Session Not Persisting Across Page Reloads auth Row Level Security (RLS) Policy Blocks All Database Access auth OAuth Callback URL Mismatch with GitHub/Google Provider auth JWT Token Expires Silently Causing Unexpected Logout auth Data Not Saving to Supabase Database database Realtime Subscriptions Not Receiving Updates database Database Migration Fails During Deployment database Foreign Key Constraint Violation on Delete/Update database N+1 Query Problem Causing Slow Database Performance database CORS Error in Production Blocking Supabase Requests deployment Vite Build Produces Blank Page in Production deployment Environment Variables Undefined in Production Build deployment Mobile Layout Broken on Small Screens ui Tailwind CSS Classes Not Applying or Conflicting ui Dark Mode Not Toggling or Persisting ui React Form Input Values Not Updating or Showing Stale Data ui Modal or Dialog Not Closing Properly ui Supabase Edge Function Timeouts or Fails to Execute api Webhook Not Receiving Events from Supabase api Third-Party API Calls Blocked by CORS api Stripe Webhook Signature Verification Failing api Slow Initial Page Load and Time to Interactive performance React Components Re-rendering Excessively performance Images Not Optimized Causing Large File Sizes performance RLS Allows SELECT But Blocks INSERT/UPDATE database Form Submission Race Condition - Multiple Submissions or Lost Data ui Vite Hot Module Replacement (HMR) Connection Fails deployment Supabase Storage Bucket CORS Error on Upload deployment Memory Leak from Unremoved Event Listeners performance Dev Server HTTPS Needed for Secure Features deployment Edge Function Cold Starts Causing Slow First Invocation performance Auth State Lost During Navigation or Redirect auth React Hook Dependency Warning - Stale Closures ui Supabase Anon Key Exposed in Client Code auth CSS Specificity Issues - Can't Override Styles ui Stripe Test vs Live Mode Confusion api Zustand State Not Updating in Components ui Vite Path Aliases Not Resolving in Build deployment React Context Returns Undefined - Missing Provider ui Testing Supabase Edge Functions Locally api Image Optimization in Vite React vs Next.js performance Database Connection Pool Exhaustion database TypeScript Strict Mode Type Errors ui Unhandled React Error Crashing App ui Browser Cache Blocking App Updates deployment Console Logging Slowing Down React Render performance Querying Supabase JSON Columns Fails database CSS-in-JS Styles Not Applying in Build deployment React Key Prop Warning in Lists ui Infinite Loop Caused by Missing Dependency ui Supabase Admin Client Bypasses RLS for Backend auth React Fragment Key Warning - No Key Prop ui Lovable Credits Ran Out? Here's What to Do credits API Keys Exposed in Lovable Frontend Code security XSS Vulnerability in Lovable App User Input security Insecure File Upload in Lovable App security CORS Misconfiguration in Lovable App security Image Upload Failing or Corrupted in Lovable storage File Storage Quota Exceeded in Lovable App storage Large File Downloads Timing Out in Lovable App storage Responsive Layout Broken on Mobile in Lovable App mobile Touch Gestures Not Working in Lovable App mobile Mobile Keyboard Pushing Content Off Screen in Lovable mobile Transactional Emails Going to Spam from Lovable App email Email Verification Flow Broken in Lovable App email Email Template Variables Showing Blank in Lovable App email Real-Time Database Sync Not Updating in Lovable realtime Lovable Live Preview Not Reflecting Code Changes realtime WebSocket Connection Dropping in Lovable App realtime Stripe Checkout Not Working in Production in Lovable App integration Google Maps Not Loading in Lovable App integration Social Media Sharing Preview Broken in Lovable App integration Google Analytics Not Tracking in Lovable App integration

Cursor

70 guides

OAuth Token Refresh Fails After Cursor AI Refactor auth JWT Signature Invalid After Cursor Code Generation auth Express Middleware Execution Order Broken After AI Edit auth Redis Session Storage Fails After Cursor Refactor auth CSRF Protection Accidentally Disabled by Cursor auth Database Migration Rollback Fails After Cursor Changes database ORM Query Syntax Broken After Cursor Code Generation database Database Connection Pool Exhausted After Refactoring database N+1 Query Problem After Cursor ORM Refactoring database Docker Build Fails After Cursor Code Changes deployment Environment Variables Not Loading in Production deployment GitHub Actions CI/CD Workflow Fails After Changes deployment Build Command Broken After Cursor Project Reorganization deployment React Component No Longer Renders After Cursor Refactoring ui CSS Styles Not Applied After Cursor File Move ui Mobile Responsive Design Broken After Refactoring ui State Management Not Working After Refactoring ui API Endpoint Type Mismatch After Cursor TypeScript Update api API Route Returns 404 After Refactoring api Import Paths Broken After File Reorganization api API Request Missing Required Headers After Refactoring api API Response Parsing Fails After Cursor Refactoring api Bundle Size Increased After Cursor Refactoring performance React Components Rerendering Excessively performance Memory Leak After Cursor Refactored Cleanup Code performance Database Query Performance Degraded performance API Rate Limit Exceeded After Changes performance React Error Boundary Missing After Cleanup ui Form Validation Logic Removed by Cursor ui Button onClick Handler Not Firing After Changes ui Modal Dialog Stuck Open After Refactoring ui Images Not Loading After Path Changes ui Async/Await Promise Chain Broken api CORS Headers Missing After API Refactoring api TypeScript Strict Mode Errors After Refactoring api Webpack Configuration Broken After Edit deployment Prisma Migration Fails After Schema Changes database Next.js Build Error After Changes deployment Complete Authentication Flow Broken auth Event Listener Added Multiple Times ui Infinite Loop Causes App Hang performance Translations Missing After i18n Changes ui Stripe Webhook Endpoint Not Receiving Events api Supabase Authentication Integration Broken auth GraphQL Query Syntax Error After Refactoring api Hot Module Reload Broken in Webpack Dev Server deployment Cache-Control Headers Set Incorrectly performance Database Transaction Not Atomic After Changes database HTML Escaping Removed, Creating XSS Vulnerability security Hardcoded API Keys and Secrets in Cursor-Generated Code security Cursor AI Credits Ran Out? Here's What to Do credits Cursor Installed Vulnerable or Outdated Dependencies security CSRF Protection Missing in Cursor-Generated Forms and APIs security File System Operations Failing in Production After Cursor Build storage S3 Access Denied Errors in Cursor-Generated AWS Code storage SQLite Database Locking and Concurrency Errors After Cursor Build storage CSS Media Queries Not Applying in Cursor-Generated Styles mobile Viewport Meta Tag Misconfigured or Missing in Cursor Project mobile CSS Grid Layout Breaking on Small Screens in Cursor App mobile SMTP Connection Refused in Production for Cursor-Generated Email Code email HTML Email Rendering Broken Across Email Clients email Email Queue Backing Up and Delays in Cursor Application email Server-Sent Events Disconnecting in Cursor Application realtime Polling Causing Excessive API Calls in Cursor-Built App realtime Docker Networking Issues in Cursor-Generated Docker Compose integration CI/CD Pipeline Failing on Cursor-Generated Code integration Vercel and Netlify Build Errors on Cursor-Generated Projects integration Cursor-Generated Unit Tests Failing Immediately testing Mock Data Schema Mismatch in Cursor-Generated Tests testing E2E Tests Timing Out in Cursor-Generated Test Suites testing

v0

58 guides

NextAuth.js Infinite Redirect Loop on Callback auth Clerk and NextAuth.js Conflicting Auth Headers auth Protected Routes Return Undefined Session in Server Components auth Clerk Missing Environment Variables Error auth Prisma Database Connection Timeout database Prisma Migration Conflict After Schema Changes database Drizzle ORM Type Generation Failed database Vercel Postgres Connection String Not Found database Neon Database Timeout in Production database Hydration Mismatch from Date/Time Rendering ui Client Component Not Rendering in App Router ui shadcn/ui Styling Conflicts with Tailwind ui Tailwind Responsive Classes Not Working on Mobile ui Next.js Image Optimization Not Working ui Next.js API Route Returns 404 on POST Request api Next.js Server Action Not Callable from Client Component api tRPC Procedure Undefined or Not Found api Next.js Middleware Not Executing on Protected Routes api Vercel Build Failure: Static Generation Failed deployment Vercel Environment Variables Not Loading in Deployment deployment Vercel Edge Runtime Import or Module Error deployment JavaScript Bundle Size Exceeds Vercel Limit performance Slow Server Components Causing High Time to First Byte performance Next.js Image Optimization Cache Not Working performance CSS-in-JS Runtime Overhead Impacting Performance performance Database N+1 Query Problem Killing Performance performance Next.js App Directory Routing Issues and Path Confusion ui Form Validation Mismatch Between Client and Server ui Stripe Webhook Signature Verification Failed api Stripe Checkout Session Not Matching Create/Update api React Hook Form Field Not Registering or Updating ui TypeScript Strict Mode Type Errors in Next.js ui Vercel Serverless Function Timeout performance Supabase Row-Level Security 403 Forbidden Error database Supabase Realtime Subscription Not Updating in Real-Time database Next.js Fetch Caching Serving Stale Data api React useEffect Dependency Warning and Infinite Loops ui NextAuth Session Not Persisting After Refresh auth v0 Credits Ran Out? Here's What to Do credits API Route Exposing Sensitive Data in Response security JWT Token Not Validated Properly in API Routes security Rate Limiting Missing on API Routes security Vercel Blob Upload Failing with Size or Type Errors storage Image Optimization Not Working with next/image storage Static Assets Returning 404 After Deployment storage Next.js Layout Shift on Mobile Devices mobile Server Components Hydration Mismatch on Mobile mobile Touch Carousel Not Swiping on Mobile Devices mobile Resend or SendGrid Integration Not Sending Emails email Email Preview Different from Actual Rendered Email email Email Unsubscribe Link Not Working email Vercel Serverless WebSocket Connection Failing realtime Real-Time Dashboard Not Updating Live Data realtime Prisma Connection Pool Exhausted on Vercel integration Stripe Webhook Signature Verification Failing integration Next.js API Routes Not Testable in Unit Tests testing Component Tests Failing with React Server Components testing Playwright Tests Timing Out on CI Pipeline testing

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