MVC “Add Controller” is “Unable to Retrieve Metadata…Config System Failed to Initialize”

Question

From scratch, I made a new solution with two projects: one was MVC 3 and the other a supporting EF 4.2 project. The whole thing builds successfully. From the MVC project I

Answer 1

I managed to solve my problem by changing the edmx's code generation strategy to T4, adding a EF5 Db Context and replacing %edmxInputFile% in both the *.tt and *.Context.tt files.