# libtmux::LookupParseError::missing_value

- **Module:** libtmux::LookupParseError
- **Package:** libtmux-cxx
- **Language:** C++
- **Kind:** constant
- **Source:** https://github.com/libtmux/libtmux-cxx/blob/85e8bd603a322dc32bb8b9aeb1a72bcf36945f1d/include/libtmux/legacy_lookup.hpp#L20
- **Page:** https://libtmux.org/reference/cxx/libtmux-lookupparseerror-missing_value/