I've tried associating new documents using AddDocumentReference and still getting the same error. Also I've tried associating an existing document using AddDocumentReference and still the same result.I've mocked up a very simple example but still no go.// Get existing documentIManDocument document = DmsHelper.GetDmsDocument(3003207, 1);// Get existing folderIManDocumentFolder documentFolder = DmsHelper.GetAssociatedFolder("AEP82008");IManDocuments contents = (IManDocuments) documentFolder.Contents;contents.AddDocumentReference(document); => Exception gets thrown heredocumentFolder.Update();Is there anyway I can obtain any more information about the error I am getting?