Entity Framework CodeFirst KeyNotFoundException in MemberDomainMap

Question

Trying to run down an error in my EF datacontext implementation that is yielding a fairly cryptic error.

Test Name:  Nodes_can_be_saved
Test FullName:  MyP         


        

Answer 1

Well, after much searching through my code and rebuilding from scratch I found that the problem was actually that I had a derived class of Node that had a Uri as a property, which obviously failed mapping since it doesn't have a default constructor (and possibly other reasons). I solved it for now by simply changing the property to a String which I validate as a Uri internally, though I would have preferred a more elegant solution. I tried mapping Uri and even a custom subclass (w/ default constructor) of Uri to a complextype, but that didn't help.

Still, the question above is answered.