Oracle Error Message
RMAN-06172: no AUTOBACKUP found or specified handle is not a valid copy or piece
Reason for the Error
A restore could not proceed because no AUTOBACKUP was found or specified handle is not a valid copy or backup piece. In case of restore from AUTOBACKUP, it may be the case that a backup exists, but it does not satisfy the criteria specified in the user’s restore operands. In case of restore from handle, it may be the handle is not a backup piece or control file copy. In may be that it does not exist.
Solution
Modify AUTOBACKUP search criteria or verify the handle.