# libtmux:client-busy

- **Package:** libtmux
- **Language:** Common Lisp
- **Kind:** exception
- **Source:** https://github.com/libtmux/libtmux-lisp/blob/c2e5fc4ed3befda21f45dfa5d5868c38fd138311/src/conditions.lisp#L70
- **Public owner:** libtmux
- **Bases:** [`libtmux:libtmux-error`](/en/lisp/latest/reference/libtmux-libtmux-error/)
- **Page:** https://libtmux.org/en/lisp/latest/reference/libtmux-client-busy/

Another external operation already owns the client's lease.

## Guides

Pages that discuss `client-busy`.

### Concepts

- [Transport and cleanup](/en/lisp/latest/concepts/transport/)

### Guides

- [Getting started](/en/lisp/latest/guides/getting-started/)