# tmux.ErrPaneObservationLost

- **Module:** tmux
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** attribute
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/control_observation.go#L21
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-errpaneobservationlost/

ErrPaneObservationLost identifies a pane observation whose control client can no longer receive every byte after its baseline. Stream failures that wrap it also preserve their underlying cause.