> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vendo.run/llms.txt
> Use this file to discover all available pages before exploring further.

# E-TURN-001

> Retired: doctor no longer posts a real model turn, so it cannot see one go unanswered.

```text retired theme={null}
E-TURN-001 — retired, doctor no longer emits this code
```

`error_code: E-TURN-001` · `status: retired`

## What you're seeing

Nothing: `npx vendo doctor` cannot print this code anymore. You are reading
it from an older run's output, or a saved report.

## Why

This code fired when doctor posted one real turn to `<base>/threads` and no
reply text came back. Doctor reads files now and sends no turn, so a broken
model seat is invisible to it.

## The fix

You check the turn yourself now: open your app, send one message, and see if
a reply streams back. If it does not, read the dev server log; it carries
the provider error.

The usual cause is no usable model credential. Set `VENDO_API_KEY` and Vendo
fills the model seat with the managed Cloud gateway, no `models` option
needed.

```bash theme={null}
export VENDO_API_KEY=vnd_live_...
```

No key yet? Run `vendo login`: your human approves a code in the browser (a
non-TTY run prints the URL and code instead), and the minted key lands in
`.env.local` automatically. Ask your human before running it.

## Related errors

* [E-CLOUD-001](/production/troubleshooting/e-cloud-001) — `VENDO_API_KEY` set but not usable, which doctor still catches
* [E-LIVE-004](/production/troubleshooting/e-live-004) — the sandbox seat, filled by the same key, also retired