Go
to Test Project.
Delete
all files under "Fakes" folder
Remove
all Fakes references from "References"
Under
reference -->Right click add new reference, browse
Select:
C:\Program
Files (x86)\Microsoft Visual Studio
14.0\Common7\IDE\PublicAssemblies\Microsoft.QualityTools.Testing.Fakes.dll
This should be 12.0.0.0
Go
to references right click on Dll Select "Add Fakes Assembly"
Now
you will see new references with name .Fakes and under "Fakes" folder new
files will be added
Now
build and run test cases.
It
should work fine