Q:

Linq to Entities System.data.Objects

I'm getting started on Linq to Entities and the example references a namespace called System.Data.Objects. My environment doesn't include this namespace and I can't find the DLL that contains it.  Anywone know where I'd find it?

A:

I had the same problem.
I downloaded code for a Microsoft tutorial and started working with it, but I hadn't added any EDM items to the solution myself, so the reference was missing.
I used "Add New Item > ADO.Net Entity Data Model" in VS2010 to add a new, empty EDM to the solution.
Then I re-built the solution.  No compiler errors.
Then I deleted the empty EDM.
Adding the EDM to the solution added the necessary references.

A:

Never mind. It appears to be part of the core framework. The tutorial I'm working from is from Microsoft so it isn't very clear... :-)

