Oracle Error Message
RMAN-05540: no archived logs found in repository for database string
Reason for the Error
Recovery catalog did not have archived log records for the specified database. If database is running in NOARCHIVELOG mode, then specify NOREDO.
Solution
Specify NOREDO for NOARCHIVELOG databases. Cannot duplicate an ARCHIVELOG database unless the recovery catalog or target database control file has archived redo log information about it.