# MIGRATE_FAILED

**What it means.** The database migration failed.

**What to do.** Open log_url, fix the failing migration, then re-run deploy. The previous version is still live.

- HTTP status: 422
- Retryable after applying the fix: yes

Every failure from the CLI or an MCP tool has this shape:

```json
{
  "ok": false,
  "code": "MIGRATE_FAILED",
  "message": "The database migration failed.",
  "fix": "Open log_url, fix the failing migration, then re-run deploy. The previous version is still live.",
  "file": "<where to edit, when known>",
  "retryable": true,
  "docs": "https://docs.uarpie.app/errors/MIGRATE_FAILED"
}
```

Apply `fix` (edit `file` when it is given), then run the same command again.