The type 'System.Data.Entity.DbContext' is defined in an assembly that is not referenced. You must add a reference to assembly 'EntityFramework 2

Question

I\'ve got one solution - the one project is class library with .edmx data model The other is asp.net web forms project.

when i start the solution I get the following e

Answer 1

I think your EntityFramework version was confused

Please download the correct version by using the NuGet package installer.

See this discussion for getting started: The type or namespace name 'DbContext' could not be found

And look this same problem and Answer : is Here