I am glad that you were able to identify and resolve the issue.
I would like to ask you for some details about the steps that you took to trigger the NullReferenceException
and the steps that you have to do in order to fix your model.
NullReference exceptions are major annoyance that usually can be fixed easily when you know the right setup and sharing information how it appeared will allow us to fix it in one of our next releases.
OpenAccess ORM is now Telerik Data Access
. For more information on the new names, please, check out the Telerik Product Map