RMAN-06026
some targets not found - aborting restore
Cause
Some of the files specified for restore could not be found. Message 6023, 6024, or 6025 is also issued to indicate which files could not be found. Some common reasons why a file can not be restored are that there is no backup or copy of the file that is known to recovery manager, or there are no backups or copies that fall within the criteria specified on the RESTORE command, or some data file copies have been made but not cataloged.
Action
The Recovery Manager LIST command can be used to display the backups and copies that Recovery Manager knows about. Select the files to be restored from that list.