I had an error "Cannot generate project files using VS2015" and another error about failing to compile dll's.
To resolve it I did following:
Under Control Panel > programs and features
Right click choose Change:

Click Modifty

Under Program languages > visual C++ install common tools
To resolve it I did following:
Under Control Panel > programs and features
Right click choose Change:

Click Modifty

Under Program languages > visual C++ install common tools



