Can't include spdlog

[arnekuchenbecker]

I can't build my project as soon as I include spdlog. Building fails with the following error messages:
1>------ Build started: Project: Dawn, Configuration: Debug x64 ------ 1>Log.cpp 1>d:\dokumente\programming\dawn\dawn\vendor\spdlog\include\spdlog\fmt\bundled\core.h(2729): error C2131: expression did not evaluate to a constant 1>d:\dokumente\programming\dawn\dawn\vendor\spdlog\include\spdlog\fmt\bundled\core.h(2729): note: a non-constant (sub-)expression was encountered 1>d:\dokumente\programming\dawn\dawn\vendor\spdlog\include\spdlog\fmt\bundled\core.h(2835): note: see reference to function template instantiation 'void fmt::v8::detail::check_format_string<fmt::v8::string_view&,const char(&)[3],S,0>(S)' being compiled 1> with 1> [ 1> S=fmt::v8::detail::format_error_code::<lambda_fe71a6a0c02ab17f222163df7410fde1>::()::FMT_COMPILE_STRING 1> ] 1>d:\dokumente\programming\dawn\dawn\vendor\spdlog\include\spdlog\fmt\bundled\format-inl.h(74): note: see reference to function template instantiation 'fmt::v8::basic_format_string<char,fmt::v8::string_view &,const char (&)[3]>::basic_format_string<fmt::v8::detail::format_error_code::<lambda_fe71a6a0c02ab17f222163df7410fde1>::()::FMT_COMPILE_STRING,0>(const S &)' being compiled 1> with 1> [ 1> S=fmt::v8::detail::format_error_code::<lambda_fe71a6a0c02ab17f222163df7410fde1>::()::FMT_COMPILE_STRING 1> ] 1>d:\dokumente\programming\dawn\dawn\vendor\spdlog\include\spdlog\fmt\bundled\format-inl.h(74): note: see reference to function template instantiation 'fmt::v8::basic_format_string<char,fmt::v8::string_view &,const char (&)[3]>::basic_format_string<fmt::v8::detail::format_error_code::<lambda_fe71a6a0c02ab17f222163df7410fde1>::()::FMT_COMPILE_STRING,0>(const S &)' being compiled 1> with 1> [ 1> S=fmt::v8::detail::format_error_code::<lambda_fe71a6a0c02ab17f222163df7410fde1>::()::FMT_COMPILE_STRING 1> ] 1>d:\dokumente\programming\dawn\dawn\vendor\spdlog\include\spdlog\fmt\bundled\core.h(2724): fatal error C1903: unable to recover from previous error(s); stopping compilation 1>Done building project "Dawn.vcxproj" -- FAILED. ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

This error also persists if I don't create any loggers but just include spdlog in my header file (using #include "spdlog/spdlog.h" and having added spdlog/include as an include directory in Visual Studio)

[tt4g]

This is fmt problem (fmtlib/fmt#2478).
Try the workaround described in the comments, or use another version fmt with the external fmt option.

[arnekuchenbecker]

Updating my Visual Studio installation fixed this. Thanks for the reply