The 'Provider Package' did not load correctly

Question

VS 2013 Professional - Version 12.0.31101.00 Update 4

All of a sudden, whenever I try to open a project (MVC project or Python project), I get:

Answer 1

Deleting ComponentModelCache from

C:\Users\YourUserName\AppData\Local\Microsoft\VisualStudio\14.0\ComponentModelCache

works fine for VS 2015.

Note: You will need to close the VS before deleting this folder. Also replace 14.0 with 12.0 in folder path for VS 2013