The error “This project is incompatible with the current version of visual studio” displayed

Question

I installed Vs 2010 Express in my PC, and created a poject named myproject with .net 4.0, it works well in Vs 2010 Express.

Now I installed Vs 2012 Express in my

Answer 1

I know this is a little old, but just in case the above solutions don't work: don't be an idiot like me and try to open an MVC project using "VS for Desktop" instead of "VS for Web" (or vice-versa), since it will give you the incompatible message.

I use TFS at my job and I tried to open a MVC project via the TFS Solution Explorer. I wasn't paying attention to which Visual Studio version I had open and since both IDE's look alike, I was confused at what was going on - a common mistake, I'm sure =P