Fix Astro Vercel Output Directory 404
Fix Astro sites deployed to Vercel that build successfully but return 404 because the output directory or adapter is wrong.
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Fix Astro sites deployed to Vercel that build successfully but return 404 because the output directory or adapter is wrong.
Resolve Cloudflare Pages build command failed errors by checking framework preset, Node version, build output directory, and environment variables.
Troubleshoot missing or undefined environment variables on Cloudflare Pages for build-time and runtime behavior.
Resolve Cloudflare Pages build failures caused by unsupported or mismatched Node.js versions.
Fix Vite apps that deploy to Cloudflare Pages but show a blank page because of base path, asset path, or output settings.
Fix Docker containers where environment variables exist during build but are missing when the app starts.
Troubleshoot Docker builds for Next.js standalone output, missing files, and incorrect copy paths.
Fix GitHub Actions deployment permission denied errors involving GITHUB_TOKEN permissions, secrets, SSH keys, and protected environments.
Fix Node version mismatch in GitHub Actions workflows using actions/setup-node, package engines, and lockfile-aware installs.
Fix GitHub Pages deployments from Actions that publish successfully but show 404 because of artifact paths or Pages source settings.
Understand and fix GitHub Actions workflows that fail because secrets are unavailable for forked pull requests.
Troubleshoot GitHub Pages custom domain 404 errors caused by DNS, CNAME, branch source, or missing build output.
Debug Netlify build command failed errors by checking base directory, package manager, output folder, environment variables, and Node version.
Troubleshoot undefined environment variables on Netlify for Vite, Next.js, Astro, and serverless functions.
Fix Netlify deployment failures caused by large files, committed build artifacts, videos, or cache directories.
Fix Netlify deployments where Next.js routes or functions fail because the Next.js runtime/plugin is missing or misconfigured.
Resolve Next.js environment variables not working on Vercel by separating server-only secrets, NEXT_PUBLIC variables, and redeploy requirements.
Troubleshoot Next.js image optimization deployment errors involving remotePatterns, domains, and static export limitations.
Fix Next.js Module Not Found build errors caused by missing packages, wrong import casing, path aliases, and dependency scope issues.
Fix npm dependency resolution failures on Vercel, Netlify, Railway, and CI caused by peer dependency conflicts.
Resolve Vercel build failures caused by pnpm lockfile mismatch, package manager detection, or frozen lockfile errors.
Troubleshoot Railway npm install failures from lockfiles, Node version, private packages, or missing build settings.
Fix Railway deployments that build successfully but fail because the start command or package script is missing.
Resolve Render web service failures where the app starts but Render cannot detect an open port.
Fix Render deployments where Prisma or database clients fail because DATABASE_URL is absent or not available at runtime.
Resolve SvelteKit deployment failures on Cloudflare Pages by using the correct adapter and build output.
Fix Next.js App Router projects that return 404 on Vercel because of route structure, output mode, or rewrites.
Troubleshoot Vercel function timeout errors in Next.js API routes, server actions, and database calls.
Step-by-step fixes for Vercel 500 Internal Server Error in Next.js apps: logs, API routes, environment variables, server-only code, and redeploy checks.
Fix Vercel npm run build failures caused by missing dependencies, wrong Node versions, TypeScript errors, or incorrect build settings.
Resolve Prisma Client initialization errors on Vercel by generating Prisma during build and checking database environment variables.
Fix Vite apps showing 404 or broken assets on GitHub Pages by setting base path, build output, and SPA fallback correctly.
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