Oracle Error Message
RMAN-05545: WARNING: Until SCN string is ahead of SCN of last full resync of recovery catalog: string
Reason for the Error
The specified point-in-time for duplication without a target connection was ahead of the last time that the datafile information was resynced to the recovery catalog. Information about offline and read-only datafiles might be incorrect.
Solution
If duplication fails due to incorrectly identified offline and/or read-only datafiles, specify a point-in-time before the last resync of the recovery catalog and retry the command. Or perform full resync of the target database and retry the command.