The Association with Name '{0}' on Entity (External Content Type) with Name '{1}' and Version '{2}' in Namespace '{3}' is ...

The Association with Name '{0}' on Entity (External Content Type) with Name '{1}' and Version '{2}' in Namespace '{3}' is invalid, because the Destination Entity of the Association is not contained by the same LobSystem (External System) as the Entity with Name'{1}' and Namespace '{3}'.