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Entity Framework 4: inheritance and Associations

I do derive my entities from a base-class that provides tracking.

Entity Framework 4: inheritance and Associations

Since User derives from TrackableBase and TrackableBase is associated with User, I get an error:

"Unable to determine a valid ordering for dependent operations. Depe开发者_运维问答ndencies may exist due to foreign key constraints, model requirements or store generated values."

Is this model just not possible, or am I doing something wrong?

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