Unable to deploy Edge Function

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This is a copy of a troubleshooting article on Supabase's docs site. It may be missing some details from the original. View the original article.

If you're having trouble deploying an Edge Function, follow these steps to diagnose and resolve the issue.

Diagnose the issue

1. Check function syntax: Run deno check on your function files locally
2. Review dependencies: Verify all imports are accessible and compatible with Deno
3. Examine bundle size: Large functions may fail to deploy

# Check for syntax errors
deno check ./supabase/functions/your-function/index.ts

# Deploy with verbose output
supabase functions deploy your-function --debug

Common causes

• Syntax errors: TypeScript or JavaScript syntax issues in your function code
• Invalid imports: Importing modules that don't exist or aren't compatible with Deno
• Large bundle size: Functions have a 10MB source code limit. See Bundle size issues for more details
• Network issues: Problems reaching the Supabase API during deployment

Before opening a support ticket

Make sure you're using the latest version of the Supabase CLI:

supabase --version
supabase update

If these steps don't resolve the issue, open a support ticket via the Supabase Dashboard and include all output from the diagnostic commands.

Additional resources

• Edge Functions guide
• Bundle size issues
• Edge Function limits