has the problem been solved because I'm having the same problem and I can't find a solution yet?

E:\flutter_application_3\windows\flutter\ephemeral\cpp_client_wrapper\include\flutter\encodable_value.h(199,60): error C2665: 'std::variantstd::monostate,bool,int32_t,int64_t,double,std::string,std::vector<uint8_t,std::allocator<uint8_t>,std::vector<int32_t,std::allocator>,std::vector<int64_t,std::allocator<int64_t>>,std::vector<double,std::allocator>,flutter::EncodableList,flutter::EncodableMap,flutter::CustomEncodableValue,std::vector<float,std::allocator>>::variant': no overloaded function could convert all the argument types [E:\flutter_application_3\build\windows\x64\plugins\firebase_auth\firebase_auth_plugin.vcxproj] Error: Build process failed.