Entity Framework – Unable to load the specified metadata resource

I have had the same problem.
After moving .edmx file with EF model to separate assembly mentioned error caused my headache: “Unable to load the specified metadata resource”.

EF version 6.1

Solution:

Old value:

metadata=res://*/Data.DataModel.csdl

New value:

metadata=res://*/DataModel.csdl

Initially .edmx was under project’s folder and I have moved it into project’s root.