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Fix Vercel deployment build failures caused by missing or misconfigured NEXT_PUBLIC_ environment variables in Next.js projects Includes evidence for Vercel troubleshooting demand.
Missing NEXT_PUBLIC_SUPABASE_URL — Vercel build command fails at deploy time Fix Vercel prebuilt deployment failure where Turbopack hashed server external aliases become unresolved in production runtime Includes evidence for Vercel troubleshooting demand.
Failed to load external module require-in-the-middle-<hash>: Cannot find module 'require-in-the-middle-<hash>' Fix Next.js/Turbopack monorepo type-check step failing for shared tsconfig base path aliases between webpack compilation and TypeScript checker Includes evidence for Deployment troubleshooting demand.
Type error: Cannot find module '@scope/shared-lib/index' or its corresponding type declarations. (getTypeScriptConfiguration: TypeScript 6 path rewriting deletes baseUrl but does not update pathsBasePath) Production serverless function on Vercel exceeds the default 60s execution limit and returns 504 FUNCTION_INVOCATION_TIMEOUT; developer needs to configure maxDuration or optimize to reduce runtime Includes evidence for Vercel troubleshooting demand.
FUNCTION_INVOCATION_TIMEOUT — An error occurred with your deployment / 504 Gateway Timeout Fix Vercel deployment runtime 500 errors caused by Turbopack writing hashed symlinks under .next/node_modules that are not resolvable in the final prebuilt serverless artifact Includes evidence for Vercel troubleshooting demand.
Failed to load external module require-in-the-middle-<hash>: Cannot find module 'require-in-the-middle-<hash>' — Next.js 16 Turbopack hashed server external aliases can become unresolved in Vercel prebuilt deployments with pnpm Fix Vercel serverless functions timing out (FUNCTION_INVOCATION_TIMEOUT / 504); developer needs to optimize function code, adjust timeout settings, or match regions for database connectivity Includes evidence for Vercel troubleshooting demand.
FUNCTION_INVOCATION_TIMEOUT — 504 error on Vercel serverless function; request reached the timeout threshold Fix Vercel FUNCTION_INVOCATION_TIMEOUT by extending serverless function timeout, enabling Fluid Compute, or optimizing handler duration Includes evidence for Vercel troubleshooting demand.
FUNCTION_INVOCATION_TIMEOUT — Vercel serverless function exceeds default 10s timeout (Hobby plan without Fluid Compute), request drops with 500 response Fix Vercel serverless function crashes caused by out-of-memory on Hobby plan, identify whether unhandled exceptions or missing environment variables are the root cause Includes evidence for Vercel troubleshooting demand.
Serverless Function has crashed — Out of memory (Hobby plan: 2 GB limit); uncaught exceptions or missing env vars causing DB/API connection failures Fix Vercel build failure where code works on case-insensitive macOS but fails on Vercel's case-sensitive Linux build environment due to import path casing mismatch Includes evidence for Vercel troubleshooting demand.
Build failed with exit code 1 — module './Header' not found (file named header.tsx) on Vercel Linux container Fix Vercel React/Vite deployment build failure caused by incompatible stdio configuration in package scripts; developer cannot deploy due to Vercel rejecting stdin/stdout/stderr alongside stdio. Includes evidence for Vercel troubleshooting demand.
Build Failed Error: It's not possible to provide stdio in combination with one of stdin, stdout, stderr Fix Vercel deploy failure caused by tsconfig path aliases not resolving correctly in build container Includes evidence for Vercel troubleshooting demand.
Module not found: Can't resolve '<component>' on Vercel despite working locally (shadcn-ui path alias issue) Fix Vercel serverless function timeouts caused by deprecated 10-second limit, missing environment variables, or incorrect region routing Includes evidence for Vercel troubleshooting demand.
FUNCTION_INVOCATION_TIMEOUT OR 504 ERROR connection closed serverless function Fix deployments that fail globally when one Vercel region (like Dubai dxb1) has an infrastructure outage, blocking all Middleware deploys worldwide Includes evidence for Vercel troubleshooting demand.
deployment blocked globally due to single region infrastructure failure middleware deployment stuck Fix Next.js Server Actions timing out silently without throwing FUNCTION_INVOCATION_TIMEOUT — developers get no actionable error details when their API routes exceed timeout limits Includes evidence for Vercel troubleshooting demand.
Server Action fails silently on timeout: next build hangs without clear FUNCTION_INVOCATION_TIMEOUT error message Fix Next.js Turbopack build failures when app dir routes fetch data from external CMS (Sanity) during next build Includes evidence for Vercel troubleshooting demand.
Error: Failed to collect page data for /sitemap.xml — Turbopack build fails while fetching external CMS data (works with --webpack) Fix Turbopack compiler crash triggered by next/font/google imports in _app.tsx pages router component Includes evidence for Vercel troubleshooting demand.
Turbopack crashes in pages/_app.tsx when next/font Google Font is imported Fix Vercel serverless function timing out before completing processing, requires optimization or plan upgrade Includes evidence for Vercel troubleshooting demand.
FUNCTION_INVOCATION_TIMEOUT — Your Vercel serverless function exceeded the time limit (10s free, 60s pro) Fix Vercel runtime crashes from missing modules that pass build but fail during middleware invocation on deployed functions Includes evidence for Vercel troubleshooting demand.
MIDDLEWARE_INVOCATION_FAILED + FUNCTION_INVOCATION_FAILED — missing-module error at runtime, build pipeline does not emit clear error before deploy Fix Next.js Turbopack build crash when app/sitemap.ts fetches data from external CMS (Sanity, etc.) Includes evidence for Vercel troubleshooting demand.
Turbopack build fails Failed to collect page data for /sitemap.xml — works with --webpack flag Fix regression in Next.js 16.2.6+ where not-found.tsx fails with FUNCTION_INVOCATION_FAILED in production when cacheComponents is enabled Includes evidence for Vercel troubleshooting demand.
[regression] app/not-found.tsx throws FUNCTION_INVOCATION_FAILED server error instead of rendering the custom error page when cacheComponents are enabled