c# - Lost shared code reference in Universal Apps

Question

Anyone know why when I reopened Visual Studio my reference to the shared project is no longer referenced and when I try to add the reference back manually I can't do it. I did not remove the shared project to begin with.

I only have SignalR as referenced if that'll make any difference.

Update

Here's the link if anyone is interested for the Visual Studio logs

Answer 1

我最终创建了一个新的Universal apps并比较了.csproj. 我编辑了现有的.csproj并将其添加回来。它起作用了，但仍然没有解释为什么它消失了。

<Import Project="..\UBelt.WindowsUniversal.Shared\UBelt.WindowsUniversal.Shared.projitems" Label="Shared" />