converting UCN to execution character set: Invalid or incomplete multibyte or wide character

[SilhouettesForYou]

I got an error when use spdlog

/usr/include/fmt/core.h:430:68: error: converting UCN to execution character set: Invalid or incomplete multibyte or wide character

  430 | FMT_MSC_WARNING(suppress : 4566) constexpr unsigned char micro[] = "\u00B5";

      |                                                                    ^~~~~~~~

CMakeLists.txt:

...
add_compile_options(-finput-charset=utf-8)
add_compile_options(-fexec-charset=GB2312)
...

[tt4g]

This is a fmt library issue (fmtlib/fmt#3154) and already fixed.
And you are using external fmt, so it is not the source code maintained in this repository.
Please upgrade your fmt.