Hi,
I am struggling with my development environment. I got a new machine with Windows 8.1. Since I had the option to install VS 2014 in my org, I installed that too so I may move on to the new IDE.
Now any project that I want to open in my older version of VS 2010, I get this message:
....cannot be opened because its project type (.csproj) is not supported by this version of the application.
To open it, please use a version that supports this type of projects.
Any help would be highly appreciated.