A BulkAssociationNavigator with Name '{0}' on Entity (External Content Type) with Name '{1}' and Version '{2}' in Namespace ...

A BulkAssociationNavigator with Name '{0}' on Entity (External Content Type) with Name '{1}' and Version '{2}' in Namespace '{3}' is invalid. It is not in an AssociationGroup or it's in an AssociationGroup that doesn't contain an AssociationNavigator in the same direction.