Error code

ENGINE_CONVERSION_REQUIRED

1 minute to read

What it means. This app uses a database engine the platform does not host.

What to do. Postgres is the platform database and every app gets one. Convert the data layer to Postgres (keep the ORM, change the provider/dialect and any engine-specific SQL), then re-run deploy. This includes SQLite: an app's disk does not survive between requests here, so a SQLite file loses what people write.

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": "ENGINE_CONVERSION_REQUIRED",
  "message": "This app uses a database engine the platform does not host.",
  "fix": "Postgres is the platform database and every app gets one. Convert the data layer to Postgres (keep the ORM, change the provider/dialect and any engine-specific SQL), then re-run deploy. This includes SQLite: an app's disk does not survive between requests here, so a SQLite file loses what people write.",
  "file": "<where to edit, when known>",
  "retryable": true,
  "docs": "https://docs.uarpie.app/errors/ENGINE_CONVERSION_REQUIRED"
}

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

This page as Markdown: /docs/errors/ENGINE_CONVERSION_REQUIRED.mdllms.txt