# libtmux:daemon-failure

- **Package:** libtmux
- **Language:** Common Lisp
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-lisp/blob/c2e5fc4ed3befda21f45dfa5d5868c38fd138311/src/daemon.lisp#L94
- **Public owner:** libtmux
- **Page:** https://libtmux.org/en/lisp/latest/reference/libtmux-daemon-failure/

```
(daemon-failure daemon)
```

Return DAEMON's retained primary failure condition, or NIL. No I/O.
This shared diagnostic can describe background failure after startup returned.

See also: `libtmux:daemon-cleanup-failures`, `libtmux:daemon-state`.

## Parameters

- `daemon`