ORA-13708: Some snapshots in the range [string, string] were purged before the analysis was complete.

ORA-13708: Some snapshots in the range [string, string] were purged before the analysis was complete.


Cause:


One or both of the snapshots have been purged from AWR.



Action:


Verify that the AWR auto purging is not trying to purge these snapshots and re-run ADDM.