             actionProperties.append(createdDate.copy() as! NSAttributeDescription)
             relationshipProperties.append(createdDate.copy() as! NSAttributeDescription)
             
-            let propertyName: NSAttributeDescription = NSAttributeDescription()
+            let propertyName = NSAttributeDescription()
             propertyName.name = "name"
             propertyName.attributeType = .StringAttributeType
             propertyName.optional = false

            actionGroupProperties.append(group.copy() as! NSAttributeDescription)
            relationshipGroupProperties.append(group.copy() as! NSAttributeDescription)
            
            let groupRelationship: NSRelationshipDescription = NSRelationshipDescription()
            groupRelationship.name = "node"
            groupRelationship.minCount = 1
            groupRelationship.maxCount = 1
            groupRelationship.optional = false
            groupRelationship.deleteRule = .NoActionDeleteRule
            
            let groupSetRelationship: NSRelationshipDescription = NSRelationshipDescription()
            groupSetRelationship.name = "groupSet"
            groupSetRelationship.minCount = 0
            groupSetRelationship.maxCount = 0

            actionSubjectSetRelationship.deleteRule = .NoActionDeleteRule
            actionSubjectSetRelationship.destinationEntity = entityDescription
            
            let actionSubjectRelationship = NSRelationshipDescription()
            actionSubjectRelationship.name = "actionSubjectSet"
            actionSubjectRelationship.minCount = 0
            actionSubjectRelationship.maxCount = 0
