Vercel Common Errors

Overview

Quick reference for the top 10 most common Vercel errors and their solutions.

Prerequisites

• Vercel SDK installed
• API credentials configured
• Access to error logs

Instructions

Step 1: Identify the Error

Check error message and code in your logs or console.

Step 2: Find Matching Error Below

Match your error to one of the documented cases.

Step 3: Apply Solution

Follow the solution steps for your specific error.

Output

• Identified error cause
• Applied fix
• Verified resolution

Error Handling

Build Failed

Error Message:

Command 'npm run build' exited with 1

Cause: Build script failed due to errors in code or dependencies

Solution:

Check build logs in Vercel dashboard. Run 'npm run build' locally to reproduce.

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Function Timeout

Error Message:

FUNCTION_INVOCATION_TIMEOUT

Cause: Serverless function exceeded execution time limit

Solution: Optimize function code, use Edge Runtime, or upgrade plan for longer timeouts.

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Domain Verification Failed

Error Message:

Domain verification failed

Cause: DNS records not configured correctly

Solution:

Add required CNAME or A records. Wait for DNS propagation (up to 48h).

Examples

Quick Diagnostic Commands

# Check Vercel status
curl -s https://www.vercel-status.com

# Verify API connectivity
curl -I https://api.vercel.com

# Check local configuration
env | grep VERCEL

Escalation Path

1. Collect evidence with vercel-debug-bundle
2. Check Vercel status page
3. Contact support with request ID

Resources

• Vercel Status Page
• Vercel Support
• Vercel Error Codes

Next Steps

For comprehensive debugging, see vercel-debug-bundle.