What do Yellow Warning Triangles mean on Dependencies in Visual Studio 2017?

Question

I have just converted my PCL library to a new .Net Standard library and I have some Yellow Warning triangles on my Dependencies shown below:

During the conv

Answer 1

There could be 1 package that can cause all others not to be loaded. try to comment packages from .csproj one by one and find out which one is problem to narrow it down.