# error.ListingDecodeError.field_name

- **Module:** error.ListingDecodeError
- **Package:** libtmux
- **Language:** Rust
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-rs/blob/f0e37052c232636b61d095817046e6bfc8f2ca40/crates/libtmux/src/error.rs#L1105
- **Page:** https://libtmux.org/en/rs/latest/reference/error-listingdecodeerror-field_name/

```
error.ListingDecodeError.field_name(self) -> Option<&'static str>
```

Return the stable tmux format name that failed, when one is known.