Provider didnt return providermanifest instance, VS2013, ef6

Question

The metadata specified in the connection string could not be loaded

Consider rebuilding the web project to build assemblies that may

contain metadata. The following error(s) occurred:

The provider did not return a ProviderManifest instance

 

 

Do let me know if you know the solution. 

-visual studio 2013 and entity framework 6.1.3