Silverlight 5 and WCF Ria Services Link Visual Studio 2012

Hi, I have a Visual Studio 2010 Project, I installed Visual Studio 2012 and Opened the Project with VS 2012. I can run the Project without issues but at design time the Web Project is no recognized as a valid reference.

My Silverlight application has a WCF RIA Services link to this Project. If I switch to Visual Studio 2010 I have not design time errors.

Why in Visual Studio 2012 my Silverlight 5 Project shows a message indicating the Web Project namespace does not exists?

Obiously the reference does not exists because is a WCF RIA Services link and VS Should infer the namespace.

I've notice that the generated code is being created with the right namespace, it's just that Visual Studio 2012 is not recognizing the classes in the generated code.

Help please.