no exports were found that match the constraint contract name

This problem could be solved by clearing Visual Studio Component Model Cache.

Just delete or rename this folder:

%AppData%\..\Local\Microsoft\VisualStudio\11.0\ComponentModelCache
or

%AppData%\..\Local\Microsoft\VPDExpress\11.0\ComponentModelCache

For Visual Studio 2013, change the version number:
%AppData%\..\Local\Microsoft\VisualStudio\12.0\ComponentModelCache

Restart Visual Studio.

Note: Possible Location to Refer- C:\Users\uXXX12\AppData\Local\Microsoft\VisualStudio\11.0

http://stackoverflow.com/questions/17596543/no-exports-were-found-that-match-the-constraint-contract-name