Vercel Debug

Investigate Vercel deployment errors using Vercel CLI. Use when user shares a Vercel deployment error, build failure, or deployment URL that needs debugging.

majiayu000 Updated 567 repo stars

File contents

Vercel Deployment Debugging

Workflow

1. Check authentication

vercel whoami

If error "No credentials found", prompt user to run vercel login in their terminal (interactive).

2. List recent deployments

vercel list <project-name> --scope <team-name>

Find the failing deployment URL (status: Error or Building).

3. Get build logs

vercel inspect <deployment-url> --logs --scope <team-name>

Add --wait to wait for in-progress builds:

vercel inspect <deployment-url> --logs --scope <team-name> --wait

4. Common errors

Error Cause Fix
Mixed Routing Properties routes and rewrites mixed in vercel.json Use only rewrites (new format)
Cannot find module Package not built before dependent Add to build command or use turbo
Build Command > 256 chars Command too long Use pnpm build with turbo/nx

5. Get deployment info (without logs)

vercel inspect <deployment-url> --scope <team-name>

majiayu000/claude-skill-registry-data/tree/main/data/vercel-debug commit 8256c0a05a

Frequently asked questions

npx skillmds@latest add majiayu000/vercel-debug