# error.Error.UnrecognizedLayout

- **Module:** error.Error
- **Package:** libtmux
- **Language:** Rust
- **Kind:** constant
- **Source:** https://github.com/libtmux/libtmux-rs/blob/f0e37052c232636b61d095817046e6bfc8f2ca40/crates/libtmux/src/error.rs#L709
- **Page:** https://libtmux.org/en/rs/latest/reference/error-error-unrecognizedlayout/

A saved layout value is not a preset name, a classic layout string, or a JSON layout.

Refused before dispatch rather than handed to tmux: 3.3 and 3.3a exit
on a layout `select-layout` cannot parse, destroying every session on
the socket, and a value such as `-o` is never a layout on any release.
The rejected value is not retained.