Oracle : Ошибка ORA-27373

"unknown or illegal event source queue"
*Cause: The source queue specified for the event based job or event
based schedule was either not found or was of the wrong type.
*Action: Check if the queue exists. If it does make sure it is a
multiple consumer queue and it is a post 8.1 compatible queue.
Single consumer queues and old-style queues cannot be used
as event source queues.

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