CWWIM0531E The prefix, 'ns_prefix' provided for the entity type name or property name, 'entity_type_or_property_name' is invalid.
Explanation
The prefix provided for the entity type name or property name has not been previously used.
Programmer response
Ensure that the prefix provided for the entity type name or property name is already defined. If you are using a CLI and want to specify entity types, use ; (semicolon) as the delimiter.