Unable to add project link with the same name

Question

I have a VS2013 solution in which I have the following structure (as an example):

My Solution
|-->My Company
|   |--> Common
|-->Common
|-->Web

As you can see, I have two projects called "Common" - one of them under the "My Company" is a project based on the whole company, which is used in all solutions, with a bunch of common code. Another is the general code for a specific project.

If I try to add projects My Company\Commonand Commonas references to the project Web, I get this error message:

I do not remember how this happened in previous versions of Visual Studio. How to add a link with the same name (note that the names of the base assembly do not match).

. , My Company\Common. , - VS?