Encounter the following errors when trying to duplicate the database to another server using the RMAN backup:
ORA-19693: backup piece E:\RMAN_BACKUP\xxxxxxxxxxx already included
The location of the RMAN backup pieces at the target and auxiliary/duplicate databases are
different. So, RMAN cannot see the RMAN backup pieces, because they are stored in a different directory at the auxiliary/duplicate database server.
Try with below command which may resolve issue
RMAN> catalog start with ‘E:\RMAN_BACKUP’;
Thank You !!