I recently upgraded from VS 2010 to VS 2013 for a new project. I\'m finding that when right-clicking on a folder (but not an individual file) in my Web Application project, it t
I am having the same issue as you. Old web projects are effecting and new web projects are ok.
What I found is I am using a lot of NuGet package in the project and local NuGet cache (C:\Users\xxx\AppData\Local\NuGet\Cache) is empty because this is new machine.
I recompile the whole solution. NuGet packages are caching in that folder. After compilation is successfully, problem solved.
I am not sure what is happening but this solve my problem. Strange thing is I need to recompile all solutions. Uncompiled solutions have this issue and after compile, this is gone.