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

first need to install package entity framework

go to tool> Libray package manager> pakage manager console > :install entity framework