Following issue occurs only on .NET Desktop Projects that also include Windows Application Packaging Project.
After my VS2019 was updated to version 16.10, all my .NET 5 projects that also include a Windows Application Packaging Project fail to build in VS2019. Both the Clean Solution and Rebuild Solution actions fail. In both cases we get the following error:
ResolvePackageDependenciestask failed unexpectedly
When I tried dotnet clean I got the following error:
C:\Program Files\dotnet\sdk\5.0.300\Microsoft\DesktopBridge\Microsoft.DesktopBridge.props" was not found. Confirm that the expression in the Import declaration "C:\Program Files\dotnet\sdk\5.0.300\\Microsoft\DesktopBridge\\Microsoft.DesktopBridge.props" is correct, and that the file exists on disk.
And I verified on my Windows 10 Pro - latest version 20H2 that the folder C:\Program Files\dotnet\sdk\5.0.300\Microsoft\ does not have the DesktopBridge folder - and that seem to cause the issue. Both the Clean Solution and Rebuild Solution were working fine just before an upgrade of VS2019 to version 16.10