Oracle Solution for Error ora-29377

ORA-29377: consumer group string is not part of top-plan string

What triggered the Error:

HER_GROUPS was not included as part of the specified top-plan. Each top plan must include the built-in consumer group OTHER_GROUPS.

What should we do to fix it:

eate a plan directive with the argument GROUP_OR_SUBPLAN being OTHER_GROUPS somewhere in the top-plan.