| ERROR | [FORG0005] fn: exactly-one called with a sequence containing zero or more than one item |
| CAUSE | It is a dynamic error if fn: exactly-one is called with a sequence containing zero or more than one item |
| ACTION | None |
| ERROR | [FORG0005] fn: exactly-one called with a sequence containing zero or more than one item |
| CAUSE | It is a dynamic error if fn: exactly-one is called with a sequence containing zero or more than one item |
| ACTION | None |