在VS Enterprise中不构建运行时组件模板，在社区项目中可以正常构建。
这是没有更改的模板。
在社区版本15.7.4中工作 在企业版15.8.2中损坏
输出
:\program files (x86)\windows kits\10\include\10.0.17134.0\cppwinrt\winrt\base.h(2185): error C3861: 'from_abi': identifier not found
1>c:\program files (x86)\windows kits\10\include\10.0.17134.0\cppwinrt\winrt\base.h(2185): note: This diagnostic occurred in the compiler generated function 'conditional<_Test,T,_Ty2>::type winrt::impl::as(From *)'
1> with
1> [
1> _Ty2=winrt::com_ptr<T>
1> ]
1>c:\program files (x86)\windows kits\10\include\10.0.17134.0\cppwinrt\winrt\base.h(2209): error C3861: 'from_abi': identifier not found
1>c:\program files (x86)\windows kits\10\include\10.0.17134.0\cppwinrt\winrt\base.h(2209): note: This diagnostic occurred in the compiler generated function 'conditional<_Test,T,_Ty2>::type winrt::impl::try_as(From *) noexcept'
1> with
1> [
1> _Ty2=winrt::com_ptr<T>
1> ]
1>c:\program files (x86)\windows kits\10\include\10.0.17134.0\cppwinrt\winrt\base.h(3850): error C3861: 'from_abi': identifier not found
1>c:\program files (x86)\windows kits\10\include\10.0.17134.0\cppwinrt\winrt\base.h(3873): note: see reference to class template instantiation 'winrt::weak_ref<T>' being compiled
1>c:\program files (x86)\windows kits\10\include\10.0.17134.0\cppwinrt\winrt\base.h(2984): note: see reference to class template instantiation 'winrt::com_ptr<ILanguageExceptionErrorInfo2>' being compiled
1>c:\program files (x86)\windows kits\10\include\10.0.17134.0\cppwinrt\winrt\base.h(3054): note: see reference to class template instantiation 'winrt::com_ptr<IRestrictedErrorInfo>' being compiled
1>c:\program files (x86)\microsoft visual studio 2017 enterprise\vc\tools\msvc\14.15.26726\include\type_traits(616): note: see reference to class template instantiation 'std::basic_string_view<wchar_t,std::char_traits<wchar_t>>' being compiled
1>c:\program files (x86)\microsoft visual studio 2017 enterprise\vc\tools\msvc\14.15.26726\include\xstring(2124): note: see reference to class template instantiation 'std::is_convertible<const _StringViewIsh &,std::basic_string_view<wchar_t,std::char_traits<wchar_t>>>' being compiled
1> with
1> [
1> _StringViewIsh=const wchar_t *
1> ]
1>c:\program files (x86)\microsoft visual studio 2017 enterprise\vc\tools\msvc\14.15.26726\include\xstring(2122): note: see reference to variable template 'const bool conjunction_v<std::is_convertible<wchar_t const * const &,std::basic_string_view<wchar_t,std::char_traits<wchar_t> > >,std::negation<std::is_convertible<wchar_t const * const &,wchar_t const *> > >' being compiled
1>c:\program files (x86)\microsoft visual studio 2017 enterprise\vc\tools\msvc\14.15.26726\include\xstring(2281): note: see reference to alias template instantiation '_Is_string_view_ish<const wchar_t*>' being compiled
1>c:\program files (x86)\windows kits\10\include\10.0.17134.0\cppwinrt\winrt\base.h(6308): error C3861: 'to_abi': identifier not found
1>c:\program files (x86)\windows kits\10\include\10.0.17134.0\cppwinrt\winrt\base.h(7189): error C7510: 'get_weak': use of dependent template name must be prefixed with 'template'
1>c:\program files (x86)\windows kits\10\include\10.0.17134.0\cppwinrt\winrt\base.h(7259): note: see reference to class template instantiation 'winrt::implements<D,I...>' being compiled
1>c:\program files (x86)\windows kits\10\include\10.0.17134.0\cppwinrt\winrt\base.h(4404): note: see reference to class template instantiation 'winrt::com_ptr<IMarshal>' being compiled
1>Done building project "RuntimeComponent1.vcxproj" -- FAILED.
========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========