# query.FilterExpressionErrorKind.InvalidRegex

- **Module:** query.FilterExpressionErrorKind
- **Package:** libtmux
- **Language:** Rust
- **Kind:** constant
- **Source:** https://github.com/libtmux/libtmux-rs/blob/f0e37052c232636b61d095817046e6bfc8f2ca40/crates/libtmux/src/query.rs#L635
- **Page:** https://libtmux.org/en/rs/latest/reference/query-filterexpressionerrorkind-invalidregex/

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