# query.FilterExpressionErrorKind.InvalidRegex

- **Module:** query.FilterExpressionErrorKind
- **Package:** libtmux
- **Language:** Rust
- **Kind:** constant
- **Source:** https://github.com/libtmux/libtmux-rs/blob/8a648c0894dfffc9303583f753b6c8ae01f2fe76/crates/libtmux/src/query.rs#L598
- **Page:** https://libtmux.org/reference/rs/query-filterexpressionerrorkind-invalidregex/

A regular expression did not compile under the version 1 dialect.