Webpack CSS Extraction Not Working
Webpack CSS extraction fails when mini-css-extract-plugin is misconfigured.
Category archive
Frontend fixes
Published troubleshooting guides for frontend issues.
Webpack Code Splitting Failed
Webpack code splitting fails when dynamic import syntax is wrong.
Webpack HMR Not Working
Webpack hot module replacement fails when dev server is misconfigured.
Webpack Bundle Size Too Large
Webpack bundles are too large when tree shaking is not enabled.
Webpack Module Not Found
Webpack cannot find modules when resolve alias is misconfigured.
TypeScript Declaration File Not Found
TypeScript cannot find declaration files when @types package is missing.
TypeScript ESM CJS Interoperability
TypeScript ESM/CJS interop fails when module format is inconsistent.
TypeScript Implicit Any Error
TypeScript implicit any errors occur when noImplicitAny is enabled without types.
TypeScript Type Mismatch Error
TypeScript type errors occur when generic type parameters are wrong.
TypeScript Module Resolution Failed
TypeScript cannot resolve modules when tsconfig paths are misconfigured.
Nuxt Server Route Not Found
Nuxt server routes are not found when API endpoint is misconfigured.
Nuxt Auto Import Not Working
Nuxt auto imports fail when composable is not in correct directory.
Nuxt Hydration Mismatch
Nuxt hydration fails when client and server render different content.
Nuxt Server Side Rendering Error
Nuxt SSR fails when window or document is accessed during server render.
Next.js ISR Stuck
Next.js incremental static regeneration is stuck when revalidation is blocked.
Next.js Middleware Not Executing
Next.js middleware does not execute when matcher config is wrong.
Next.js API Route CORS Error
Next.js API routes fail CORS when headers are not properly set.
Next.js Image Optimization Failed
Next.js image optimization fails when external image source is unreachable.
Next.js Static Export Mismatch
Next.js static export fails when dynamic routes are not prerendered.
Next.js getServerSideProps Error
Next.js getServerSideProps fails when async operation throws uncaught error.
Angular Standalone Component Import
Angular standalone components fail when imports are missing dependencies.
Angular Ivy Compilation Failed
Angular Ivy compilation fails when partial compilation is misconfigured.
Angular Template Compilation Error
Angular templates fail to compile when syntax is invalid.
Angular Memory Leak Subscription
Angular memory leaks occur when subscriptions are not unsubscribed on destroy.
Angular Observable Not Subscribed
Angular observables do not emit when async pipe is not used.
Angular Router Outlet Not Loading
Angular router-outlet does not load when route configuration is invalid.
Angular Module Not Found
Angular modules are not found when import path or barrel export is wrong.
Angular Dependency Injection Error
Angular DI fails when provider is not available in the injector hierarchy.
Angular ExpressionChangedAfterChecked
Angular throws ExpressionChangedAfterChecked when value changes during change detection.
Angular Change Detection Loop
Angular change detection loops occur when template updates model values.
Vue Slot Content Not Rendering
Vue slot content does not render when slot name does not match.
Vue Transition Not Animating
Vue transitions do not animate when CSS classes are not defined.
Vue Async Component Not Loading
Vue async components do not load when import path is incorrect.
Vue Vuex Mutation Error
Vue Vuex mutations fail when state is modified outside of mutations.
Vue Router Guard Blocking
Vue router navigation guards block navigation when next() is not called.
Vue Watch Callback Not Firing
Vue watch callbacks do not fire when watched value is deeply nested.
Vue Computed Property Not Updating
Vue computed properties do not update when dependencies are not tracked.
Vue v-for Key Warning
Vue shows key warning when v-for does not have unique key attribute.
Vue Component Not Updating
Vue components do not update when props are mutated directly.
Vue Reactivity Lost
Vue loses reactivity when new properties are added without Vue.set.
React Suspense Fallback Stuck
React Suspense fallback does not resolve when lazy component never loads.
React Error Boundary Not Catching
React error boundaries do not catch errors when they occur in event handlers.
React Portal Not Rendering
React portals do not render when target DOM element does not exist.
React Event Handler Not Firing
React event handlers do not fire when propagation is stopped or element is unmounted.
React Memory Leak
React memory leaks occur when subscriptions are not cleaned up on unmount.
React Key Prop Warning
React shows key prop warning when list items do not have stable unique keys.
React Context Not Re-rendering
React context consumers do not re-render when value reference does not change.
React State Not Updating
React state does not update when mutation is used instead of immutable update.
React Infinite Render Loop
React enters infinite render loop when useEffect dependencies are misconfigured.
React Hydration Mismatch
React hydration fails when server-rendered HTML does not match client-side render.