ACTEN0019E: The following node exists in the rule set, but it is not a rule or rule block: node_name.

Explanation: The node name that was supplied in a processEvent() method exists in the rule set, but it is not the name of a rule or rule block as required. A typical cause of this error is the specification of a rule set or rule block variable as the node name.

Administrator Response: Verify that the node name is correct, that the rule or rule block should be present, and that the node name is not that of a rule set or rule block variable.