I have a reasonably large project, when I update the C++/WinRT NuGet package I get the following problem:
1>C:Program Files (x86)Microsoft Visual Studio19CommunityVCToolsMSVC.29.30133includexsmf_control.h(137,33): error C2139: 'winrt::ProjectName::ExistingClass': an undefined class is not allowed as an argument to compiler intrinsic type trait '__is_trivially_destructible'
It seems to be caused by a wrong forward declaration.
Any idea on how I could debug this?
Source: Windows Questions C++