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

Oracle Error Message

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

Reason for the Error

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

Solution

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