C / WinRT是Windows SDK 17134的一部分,与Visual Studio 15.8 Preview 3不兼容

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尝试编译以下代码：

#include <winrt/base.h>

int main() {}

使用以下编译器选项：

/permissive- /std:c++latest

随着最近发布的Visual Studio 15.8 Preview 3.0导致以下编译错误：

1>------ Build started: Project: test1, Configuration: Debug x64 ------
1>Source.cpp
1>c:\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\preview\professional\vc\tools\msvc\14.15.26608\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\preview\professional\vc\tools\msvc\14.15.26608\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\preview\professional\vc\tools\msvc\14.15.26608\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\preview\professional\vc\tools\msvc\14.15.26608\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>Done building project "test1.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

有什么解决方案吗？

解决方法:

这是一个已知问题,将在未来的Windows 10 SDK更新中解决.

您可以通过完全关闭一致性模式(/ permissive-)来解决此问题,或者通过添加到Additional Options / Zc：twoPhase-来禁用two-phase name lookup来保持打开状态.

You should use /std:c++17 and not /std:c++latest with VS 2017 for C++/WinRT to enable C++17 without opting in to future draft changes.

更新：使用Windows 10 October 2018 Update SDK(17763)解决此问题.

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