BulkAssociationNavigator '{0}' on Entity (External Content Type) '{2}' with Namespace '{1}' does not have an AssociationNavigator ...

BulkAssociationNavigator '{0}' on Entity (External Content Type) '{2}' with Namespace '{1}' does not have an AssociationNavigator in its group. This could be either because the BulkAssociationNavigator is not in an AssociationGroup, or the AssociationGroup containing this BulkAssociationNavigator does not have an AssociationNavigator in the same direction.