An update occurred last night and now I find myself unable to do a ctrl + \'.\' for code suggestions in VS 2015. An error message comes up saying the following:
I found the missing assemblies in the NuGet package (After the first one was resolved there were mulitple otheres): https://www.nuget.org/packages/Microsoft.Net.Compilers/1.3.1-rc
Installed them using GacUtil from the Dev console.