immutable_field

This field cannot be changed after creation. Some settings are fixed once a resource exists, for example a database engine. Changing them in place would risk your data.

• HTTP status: 422 Unprocessable Content
• CLI exit code: 2 (the request or file is not valid)
• Retry: not as it is; the same request will fail the same way until the cause is fixed

How to fix it

Create a new {resource_type} instead.

Words in {braces} are filled in from the error response, which names the exact resource.

What the response looks like

{
  "type": "https://guv.dev/errors/immutable_field",
  "title": "This field cannot be changed after creation",
  "status": 422,
  "code": "immutable_field",
  "detail": "Some settings are fixed once a resource exists, for example a database engine.",
  "fix": "Create a new {resource_type} instead.",
  "docs_url": "https://guv.dev/errors/immutable_field",
  "request_id": "req_01jbx2m9k7q4r8t5v6w3y0z1rq"
}

The code field is stable: match on it, not on title or detail, which may be reworded.