Unity Pro Version Control Problem

Recently I join a company to make game using unity
I installed the unity 4.6.3 in a Mac, and activate it into Pro version.
But we find that the version control in menu is grey and cannot checkout the project.
I have set the Version Control to visible meta files.

We are finding what’s wrong in the steps…I am new to team project in unity.
Do anyone know what happen?

The access to the preinstalled and integrated Version Control interface you need the Unity Team License.

There are some asset in the asset-store for other VC intergrations.

Alternatively you can use a external VC tool, that works fine with the visible meta files.