# tmux.ErrUnknownControlNotification

- **Module:** tmux
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** attribute
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/control_notification.go#L18
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-errunknowncontrolnotification/

ErrUnknownControlNotification identifies a well-framed notification kind outside the pinned control-mode vocabulary.