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Unexpected token 'u', undefined is not valid JSON
SyntaxError: Unexpected token 'u', "undefined" is not valid JSONSyntaxError: Unexpected token in JSON
SyntaxError: Unexpected token < in JSON at position 0SyntaxError: Unexpected end of JSON input
SyntaxError: Unexpected end of JSON inputTypeError: Converting circular structure to JSON
TypeError: Converting circular structure to JSONSyntaxError: Unexpected token ' in JSON
SyntaxError: Unexpected token ' in JSON at position 1403 Forbidden — Access Denied
HTTP 403 Forbidden401 Unauthorized — Authentication Required
HTTP 401 Unauthorized404 Not Found
HTTP 404 Not Found500 Internal Server Error
HTTP 500 Internal Server ErrorCORS Error — Cross-Origin Request Blocked
Access to fetch at 'https://api.example.com' from origin 'https://yoursite.com' has been blocked by CORS policyFix: Vercel Pricing & Function Duration Limits
Error: Task timed out after 10 seconds. Your function exceeded the maximum execution time.TypeError: Cannot read properties of undefined (reading 'bgColor')
TypeError: Cannot read properties of undefined (reading 'bgColor')TypeError: Cannot read properties of undefined (reading 'toLowerCase')
TypeError: Cannot read properties of undefined (reading 'toLowerCase')TypeError: Cannot read properties of undefined (reading 'indexOf')
TypeError: Cannot read properties of undefined (reading 'indexOf')TypeError: Cannot read properties of undefined (reading 'delta')
TypeError: Cannot read properties of undefined (reading 'delta')TypeError: Cannot read properties of undefined
TypeError: Cannot read properties of undefined (reading 'map')TypeError: X is not a function
TypeError: myFunction is not a functionUnhandledPromiseRejectionWarning
UnhandledPromiseRejectionWarning: Unhandled promise rejectionAI Agent Error: Recursive Loop Limit Detected
Error: AI Agent Infinite Loop. Maximum recursion depth exceeded for tool-call loop.Fix: TypeError: Cannot read properties of undefined (reading 'error')
TypeError: Cannot read properties of undefined (reading 'error')CONFLICT — Merge conflict in file
CONFLICT (content): Merge conflict in src/index.jsYou are in 'detached HEAD' state
HEAD detached at abc1234You are in 'detached HEAD' state
HEAD detached at abc1234git push rejected — failed to push some refs
error: failed to push some refs to 'origin'. hint: Updates were rejected because the remote contains work that you do not have locally.fatal: refusing to merge unrelated histories
fatal: refusing to merge unrelated historieserror: failed to push some refs (non-fast-forward)
error: failed to push some refs to 'https://github.com/user/repo.git' hint: Updates were rejected because the remote contains work that you do not have locally.Docker: Bind for 0.0.0.0:PORT failed — port is already allocated
Error: Bind for 0.0.0.0:3000 failed: port is already allocatedError: Bind for 0.0.0.0:PORT failed — port is already allocated
Error response from daemon: driver failed programming external connectivity: Bind for 0.0.0.0:3000 failed: port is already allocatedError: no space left on device
Error response from daemon: write /var/lib/docker/...: no space left on deviceGot permission denied while trying to connect to Docker daemon socket
Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sockstandard_init_linux.go: exec user process caused "exec format error"
standard_init_linux.go:211: exec user process caused "exec format error"bash: Permission denied
-bash: ./script.sh: Permission deniedbash: Permission denied
-bash: ./script.sh: Permission deniedGitHub Actions: OIDC Token Exchange Failure
Error: OIDC Token Exchange failed. Could not verify identity with AWS/Azure/GCP.CSS styles not applying — specificity issue
CSS rule not applying despite being correctCSS styles not applying — specificity conflict
CSS rule not being applied (overridden by more specific selector)Flexbox not centering / flex properties not working
CSS flexbox align-items or justify-content not workingTailwind CSS styles are not applying to my elements
Tailwind CSS classes (like bg-blue-500) are in the HTML but nothing changes in the browser.Tailwind v4 Build Error: JIT Compilation Failure
Error: Tailwind v4 JIT Compilation Failure. Native CSS engine could not resolve @theme variables.Tailwind v4 Error: Invalid @theme directive
Error: Invalid @theme directive. CSS-first engine failed to parse theme registry at line [X].Fix: Tailwind CSS v4 @theme Not Found
Error: The @theme function must use a variable defined in your CSS or the default theme.Error: Hydration failed because the initial UI does not match
Error: Hydration failed because the initial UI does not match what was rendered on the server.Module not found: Can't resolve '@/components/...'
Module not found: Can't resolve '@/components/MyComponent'Dynamic server usage: headers/cookies called in static context
DynamicServerError: Dynamic server usage: headers() expects to have requestAsyncStorageError: Invalid src prop — hostname not configured in next.config
Error: Invalid src prop on `next/image`, hostname is not configured under images in your `next.config.js`HookWebpackError: Cannot read properties of undefined (reading 'length')
HookWebpackError: Cannot read properties of undefined (reading 'length') in cssnano-simpleError: Hydration failed because the initial UI does not match
Error: Hydration failed because the initial UI does not match what was rendered on the server.Error: Next.js 15 Async Request Context not found
Error: Next.js 15 Async Request Context not found. This typically occurs when attempting to access headers() or cookies() outside of a request scope.HookWebpackError: Cannot read properties of undefined (cssnano-simple)
HookWebpackError: Cannot read properties of undefined in cssnano-simpleFix: Next.js Hydration failed because the initial UI does not match
Error: Hydration failed because the initial UI does not match what was rendered on the server.Error: Next.js 15 Partial Prerendering (PPR) is not enabled
Error: Partial Prerendering (PPR) is not enabled for this route. Add 'experimental: { ppr: true }' to your config.Objects are not valid as a React child
Error: Objects are not valid as a React child (found: object with keys {id, name})useContext must be used within a Provider
Error: useContext must be used within a <ThemeProvider>Too many re-renders. React limits the number of renders
Error: Too many re-renders. React limits the number of renders to prevent an infinite loop.React Hook called conditionally or in wrong order
React Hook 'useState' is called conditionally. React Hooks must be called in the exact same order in every component render.ReferenceError: useRef is not defined
ReferenceError: useRef is not definedError: Too many re-renders
Error: Too many re-renders. React limits the number of renders to prevent an infinite loop.Hydration Mismatch: React 19 Server Action State
Error: Hydration Mismatch. Server Action state did not match between server and client.Error: Only one instance of createRoot can be used
Error: Only one instance of createRoot can be used per container. This typically happens during HMR or in micro-frontend architectures.Zustand Fix: Component not re-rendering on state change
Error: Zustand store updated but UI remains at previous state.Access to fetch at 'X' has been blocked by CORS policy
Access to fetch at 'https://api.example.com/data' from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resourceError: EADDRINUSE — address already in use
Error: listen EADDRINUSE: address already in use :::3000Error: ENOENT — no such file or directory
Error: ENOENT: no such file or directory, open '/path/to/file'RangeError: Maximum call stack size exceeded
RangeError: Maximum call stack size exceededPrisma Error: Can't reach database server at `localhost`
Error: Can't reach database server at `localhost`:`5432` Please make sure your database server is running at `localhost`:`5432`.ReferenceError: require is not defined in ES module scope
ReferenceError: require is not defined in ES module scope. This file is being treated as an ES module because it has a '.mjs' extension.ModuleNotFoundError: No module named 'pkg_resources'
ModuleNotFoundError: No module named 'pkg_resources'ModuleNotFoundError: No module named 'readline'
ModuleNotFoundError: No module named 'readline'ModuleNotFoundError: No module named 'comfy'
ModuleNotFoundError: No module named 'comfy'ModuleNotFoundError: No module named 'X'
ModuleNotFoundError: No module named 'requests'MWAA Triggerer: ModuleNotFoundError: No module named 'libs'
ModuleNotFoundError: No module named 'libs' (in Airflow Triggerer process)pip ERROR: ResolutionImpossible — dependency conflict
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed.TypeError: 'NoneType' object is not subscriptable
TypeError: 'NoneType' object is not subscriptableIndentationError: unexpected indent
IndentationError: unexpected indentIndentationError: unexpected indent
IndentationError: unexpected indentModuleNotFoundError: No module named 'cv2'
ModuleNotFoundError: No module named 'cv2'ModuleNotFoundError: No module named 'jsonschema'
ModuleNotFoundError: No module named 'jsonschema'npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! ERESOLVE unable to resolve dependency treenpm ERR! EACCES permission denied
npm ERR! code EACCES npm ERR! syscall mkdir npm ERR! path /usr/local/lib/node_modulesFix: Bun install FATAL ERROR: Reached heap limit
FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memoryType 'X' is not assignable to type 'Y'
Type 'string' is not assignable to type 'number'Property 'X' does not exist on type 'Y'
Property 'name' does not exist on type '{}'Cannot find name 'X'
Cannot find name 'useState'Biome Fix: CLI is ignoring .gitignore rules
Biome: The file /node_modules/... is being linted despite being in .gitignoreBrowse our 100+ free developer tools to debug and fix issues directly in your browser.
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