# tmux.ControlProtocolError

- **Module:** tmux
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** struct
- **Source:** https://github.com/libtmux/libtmux-go/blob/5f808882015a975a65acc7f9da5b3ff0d5cbdc91/tmux/control_protocol.go#L18
- **Page:** https://libtmux.org/reference/go/tmux-controlprotocolerror/

ControlProtocolError reports a control-stream state violation without retaining or disclosing command output or notification contents. It matches [ErrControlProtocol] through errors.Is.

## Members

- `State` (attribute) — State is the parser state in which the violation occurred.
- `Reason` (attribute) — Reason describes the structural violation without quoting input.
- `Error` (method) — Error implements error.
- `Unwrap` (method) — Unwrap makes ControlProtocolError compatible with ErrControlProtocol.