Hi Dietmar, > I'm getting the following > > error: ‘basic_runtime’ is not a member of ‘fmt’ > 168 | std::is_convertible<T, > fmt::basic_string_view<Char>>::value || std::is_same<remove_cvref_t<T>, > fmt::basic_runtime<Char>>::value>
This is weird. In <spdlog/common.h> in 1.15.1 we have [1]: template <typename Char> #if FMT_VERSION >= 90101 using fmt_runtime_string = fmt::runtime_format_string<Char>; #else using fmt_runtime_string = fmt::basic_runtime<Char>; #endif It is unlikely that you are still using basic_runtime for fmtlib10. [1]: https://github.com/gabime/spdlog/blob/48bcf39a661a13be22666ac64db8a7f886f2637e/include/spdlog/common.h#L186-L191 Thanks, Shengqi Chen