mscorlib version conflict during build

Question

On a new Win8.1 reinstall, with all of my code restored from backup, I\'m suddenly now getting a Visual Studio warning when I build the main project of my solution:

Answer 1

I solved this by setting my verbosity to Diagnostic as per this answer.

Once I did that and rebuilt my solution, the build log actually listed the specific packages that depend on the two different versions of mscorlib.

In my particular case, my project had references to version 2.0.20126.16343 of System.Net.Http. I opened up the NuGet Package Manager and updated this package to the latest version (4.3.4 at the time). The next time I built my solution, the warnings were gone.