I have just updated all my nuget packages for my solution (dotnet core 1.1 project).
I am now getting the following warnings and I don\'t really know what they mean.
I had a similar issue, where my project had package reference like this:
Package references:
Package A
Package B
Package A
So because project B reference package A, I just deleted package A from the main packages list and was left with Package B referencing Package A. I rebuilt the solution and the problem was gone.