Scaffolding controller doesn't work with visual studio 2013 update 3 and 4

Question

Im unable to scaffold a controller (MVC5 Controller with views, using Entity Framework) in Visual studio 2013 (update 3 and 4). The error message is below:

There was

Answer 1

I solved it by adding a try/catch on the code to OnModelCreating function inside the context class. Just keep the base.OnModelCreating(modelBuilder);

outside your try/catch