# query.ExactlyOneError

- **Module:** query
- **Package:** libtmux
- **Language:** Rust
- **Kind:** enum
- **Source:** https://github.com/libtmux/libtmux-rs/blob/8a648c0894dfffc9303583f753b6c8ae01f2fe76/crates/libtmux/src/query.rs#L447
- **Page:** https://libtmux.org/reference/rs/query-exactlyoneerror/

## Members

- `NoItems` (constant) — The iterator contained no items.
- `MultipleItems` (constant) — The iterator contained more than one item.