TOOLCHAIN_MISSING

Meaning

The build toolchain is unavailable on the worker.

What to do

Read the build log and the guide on fixing a failed build.

Keep the request_id field of the response: it lets support find the incident.

Example response

{
  "code": "TOOLCHAIN_MISSING",
  "message": "The build toolchain is unavailable on the worker.",
  "docs_url": "/errors/TOOLCHAIN_MISSING",
  "request_id": "01a0d2…"
}