Error in Microsoft Visual Studio 2012 :No exports were found that match the constraint -


when opened project in vs2012 , got error

no exports found match constraint:

contractname
microsoft.visualstudio.utilities.icontenttyperegistryservice
requiredtypeidentity
microsoft.visualstudio.utilities.icontenttyperegistryservice

please correct before proceeding. (you might rename current web.config , add new one).

why did happen, can please suggest solution?

i solved problem clearing visual studio component model cache. delete or rename folder:

%appdata%\..\local\microsoft\visualstudio\11.0\componentmodelcache

or, visual studio 2013:

%appdata%\..\local\microsoft\visualstudio\12.0\componentmodelcache


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