用于桌面应用程序默认项目的 WinUI 3.0 出现运行时错误

Question

使用Windows UI Library 3 Preview 2 (July 2020) that was released just yesterday. On latest version of VS2019 - Preview, followed this official tutorial Get started with WinUI 3 for desktop apps 创建桌面项目。项目编译成功，但在调试模式下运行时出现以下错误。我正在使用 Windows10 Pro ver. 1903:

System.MissingMethodException
  HResult=0x80131513
  Message=Method not found: 'Void System.Runtime.InteropServices.ComWrappers.RegisterForTrackerSupport(System.Runtime.InteropServices.ComWrappers)'.
  Source=WinRT.Runtime
  StackTrace:
   at WinRT.ComWrappersSupport.set_ComWrappers(ComWrappers value)
   at WinRT.ComWrappersSupport.InitializeComWrappers(ComWrappers wrappers)
   at WinUI_DesptopPreview2.Program.Main(String[] args) in C:\DotNET5VS2019\Desktop_WinUI\WinUI_DesptopPreview2\WinUI_DesptopPreview2\obj\x64\Debug\net5.0\win-x64\App.g.i.cs:line 25

错误截图:

Answer 1

我运行也遇到了这个问题，更新 .NET 5 SDK 以预览 6 为我解决了这个问题。 Link 安装程序： https://dotnet.microsoft.com/download/dotnet/thank-you/sdk-5.0.100-preview.6-windows-x64-installer

用于桌面应用程序默认项目的 WinUI 3.0 出现运行时错误

WinUI 3.0 for desktop apps default project gives runtime error

c#

winui

winui-3