Message Oracle RMAN-06023 - no backup or copy of datafile number found to restore

ERRORno backup or copy of datafile number found to restore
CAUSEA datafile, tablespace, or database restore could not proceed because no backup or copy of the indicated file was found. It may be the case that a backup or copy of this file exists but does not satisfy the criteria specified in the users restore operands.
ACTIONNone - this is an informational message. See message 6026 for further details.