Product documentationintermediate15 minutes
Troubleshoot a failed deployment
Troubleshoot a failed Jotsu deployment by finding the first failing step, inspecting relevant logs, correcting the cause, and retrying safely.
Open the failed Deploy app dialog and start with the first error in its deployment logs.
Check for:
- Type or build errors
- Missing environment variables
- Unsupported runtime APIs
- Failed database migrations
- Invalid bindings or configuration
- A failed startup or health check
Fix the cause in Build, verify the development preview, then deploy again. Do not repeatedly redeploy unchanged code.
If the message is unclear, give Codex the failed step and a redacted log excerpt. Ask it to inspect deployment configuration and make only changes connected to that failure.