# libtmux.json:invalid-filter-document

- **Package:** libtmux/json
- **Language:** Common Lisp
- **Kind:** exception
- **Source:** https://github.com/libtmux/libtmux-lisp/blob/c2e5fc4ed3befda21f45dfa5d5868c38fd138311/src/json.lisp#L21
- **Public owner:** libtmux.json
- **Bases:** [`libtmux:libtmux-error`](/en/lisp/latest/reference/libtmux-libtmux-error/)
- **Page:** https://libtmux.org/en/lisp/latest/reference/libtmux-json-invalid-filter-document/

A filter document is malformed, unknown, or semantically invalid.

## Guides

Pages that discuss `invalid-filter-document`.

- [Query interchange](/en/lisp/latest/topics/query-interchange/)