Oracle Error Message
RMAN-05535: WARNING: All redo log files were not defined properly.
Reason for the Error
It was not possible to define all the redo log files. This can occur when LOG_FILE_NAME_CONVERT initialization parameter is defined but fails to match all the names or causes names to be created that are not in valid directories.
Solution
Query the V$LOGFILE view to see what redo log files are defined after DUPLICATE has completed. Use the ALTER DATABASE RENAME FILE SQL command to correctly name the existing redo log files.