| ERROR | attributeGroup reference shouldnt have children |
| CAUSE | A reference-to-attributeGroup element has children. It is suppose to be empty except for annotations. |
| ACTION | Remove the children. |
| ERROR | attributeGroup reference shouldnt have children |
| CAUSE | A reference-to-attributeGroup element has children. It is suppose to be empty except for annotations. |
| ACTION | Remove the children. |