# not_acceptable

> The requested media type is not available. The Accept header asks for a format this endpoint cannot return.

**The requested media type is not available.** The `Accept` header asks for a format this endpoint cannot return.

- **HTTP status:** `406 Not Acceptable`
- **CLI exit code:** `1` (not signed in)
- **Retry:** not as it is; the same request will fail the same way until the cause is fixed

## How to fix it

Send Accept: application/json.

## What the response looks like

```json
{
  "type": "https://guv.dev/errors/not_acceptable",
  "title": "The requested media type is not available",
  "status": 406,
  "code": "not_acceptable",
  "detail": "The `Accept` header asks for a format this endpoint cannot return.",
  "fix": "Send Accept: application/json.",
  "docs_url": "https://guv.dev/errors/not_acceptable",
  "request_id": "req_01jbx2m9k7q4r8t5v6w3y0z1rq"
}
```

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