January 2, 2013
The title pretty much says it all, there is no way to open an MVC2 project within Visual Studio 2012, there is no “auto-upgrade” path either! If you attempt to convert a solution containing an MVC2 project you will probably see the following error message: Subtype: ‘{F85E285D-A4E0-4152-9332-AB1D724D3325}’ is unsupported by this installation. If you do, then the only real solution appears to be graft the existing MVC2 project into an empty MVC3 or MVC4 project . . .