Fix ESLint: Module.createRequire is not a function
Reproduced on Node 10 vs Node 18 with the same node_modules: the crash is the Node runtime executing ESLint, not Parcel or a broken module resolution.
8 min read
Production troubleshooting
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Everything you need to build production-ready full-stack apps with Next.js 15 and Supabase — authentication, RLS, deployments, performance, and architecture decisions.
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90 articles
Next.js Errors
Fixes for the Next.js errors developers paste into a search bar: ChunkLoadError, prerender and "use cache" build failures, hydration warnings, the useSearchParams Suspense error, port and next/image configuration.
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64 articles
Supabase Debugging & Troubleshooting
Field-tested fixes for the Supabase errors that actually waste your time: RLS silent failures, session persistence, slow queries, realtime gotchas, and auth redirects.
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n8n Automation
Practical n8n automation guides built from actual client work — CRM lead capture, client reporting, Zapier migration, silent failure debugging, and self-hosted AI with Ollama.
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PostgreSQL in Production
PostgreSQL error messages and query patterns you hit running Postgres in production — whether you connect through psql directly or through Supabase, the underlying database is the same.
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161 articles
TypeScript Type Errors
The TypeScript compiler errors (TS2322, TS2305, TS7016, TS2564 and friends) you actually hit building Next.js apps, with the fix and the type-system reasoning behind it.
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Our three most recent articles. No curve, no algorithm — just dates.
Fix "X is not a constructor" from a plain require()
Why adding a property to exports and then requiring it without destructuring hands you an object instead of a constructor, reproduced on current Node.js.
7 min read
Fix tar EPERM: operation not permitted, futime
Reproduce the ownership mismatch behind the warning, see how a current npm install actually fails, and fix the layer that creates it.
9 min read
More production fixes
All articlesTailwind upgrade: Could not load the configuration file
Reproduced on Windows 11 with a virtual drive: the exact failing version, why @next still breaks today, and the command that migrates a v3 project cleanly.
7 min read
Fix: useRouter query undefined on first render
Why Next.js hydrates a dynamic Pages Router page with an empty query object, how router.isReady fixes it, and why the App Router does not have this exact problem.
7 min read
Fix Failed to replace env in config: NPM_TOKEN
Separate an npmrc parsing failure from registry authentication, with reproduced npm and Yarn Classic controls and a secret-safe CI fix.
8 min read
Fix Vite: Preprocessor dependency "sass" not found
Separate a missing Sass compiler from a webpack loader, an omitted build dependency and a Tailwind integration error before changing your configuration.
8 min read
Fix pnpm ERR_PNPM_LINKING_FAILED on Windows
Find the process or path preventing a pnpm rename, distinguish a locked package from a version regression, and retain the dependency resolution.
9 min read
Fix pnpm ERR_PNPM_OUTDATED_LOCKFILE in CI
Find the mismatched workspace importer, align the pnpm version, and prove the repaired lockfile installs without changing a byte.
8 min read
Fix Vite React error #130: react-multi-carousel
A current client bundle reproduces the carousel import failure before hosting, then renders successfully after changing only the component value.
8 min read
Fix TransformStream is not defined in Jest
Separate an old Node limitation from a missing Jest global, then verify the stream reads, writes and closes without replacing the Worker runtime.
8 min read
Fix slow Tailwind v3 in Vite: remove catch-all safelists
Separate oversized generated CSS from plugin cost, with a single-change compiler reproduction and an Autoprefixer negative control.
8 min read