Have two computers at home. One has VS2012 installed, and the other has VS2010 SP1. Started an MVC4 project on VS2010 and later opened the solution in VS2012 to continue working on it. When I right-click on the Controllers folder and selected Add => Controller... from the context menu VS2012 freezes. The only way to get to continue is to open the Task Manager and terminate the process.
I can work around the problem by selecting Add => New Item... and selecting MVC 4 Controller, but then I loose the scaffolding that the wizard produces.
Another work around is to create a new solution in VS2012, then add all the code files from the original project as Exising Items. I can then utilize the Add => Controller... wizard.
Has anyone else experienced this behavior? If so, please visit https://connect.microsoft.com/VisualStudio/feedback/details/763452/vs2012-hangs-on-add-controller-when-project-originated-from-vs2010-express to Up Vote and click the "Me Too" link.