You can use the Call Parent Method node on this VI only if the parent LabVIEW class contains a VI with the same name as this VI or inherits a VI with the same name from an ancestor class.

In the following image, Parent.lvclass does not include a member VI named Do Action. To use the Call Parent Method node in the child class member VI named Do Action, Parent.lvclass must contain a VI named Do Action.

To correct this error, create a member VI in the parent class that meets the criteria for an override member VI.