Overview
When Next.js deployment failed, slow down and isolate the failure: build, runtime, networking, DNS, credentials, or resources. Better-PaaS gives you logs, deployment history, server tools, and configuration screens to work through the problem systematically.
Start here
First, review build command, Node version, and start command. Then check the most recent deployment logs and confirm whether the app failed during build, startup, health check, or routing.
Step-by-step checks
Work from the app outward: source code, build output, runtime command, env vars, container health, router, DNS, then external services.
- Read the latest logs
- Confirm the app listens on the expected port
- Verify required environment variables
- Check database or service containers
- Retry after fixing one variable at a time
Prevent it next time
Keep build scripts explicit, document env vars, set backups for stateful apps, and verify a staging deployment before switching a production domain.
Next.js build failures on VPS deploys
Production builds need more memory than dev. A 1 GB VPS may OOM during next build on large apps.
- Ensure package-lock.json or pnpm-lock.yaml is committed
- Set "build": "next build" and "start": "next start" in package.json
- Move NEXT_PUBLIC_* vars to env before build if required at compile time
- Upgrade VPS RAM temporarily or build in CI and deploy Dockerfile if builds keep failing
FAQ
Can Better-PaaS show logs for Next.js deployment failed?
Yes. Better-PaaS streams container logs in the dashboard and stores logs on disk for troubleshooting.
Should I redeploy immediately?
Only after changing one likely cause. Repeated redeploys without reading logs usually hide the real issue.