Oracle Message ORA-19811 - cannot have files in DB_RECOVERY_FILE_DEST with keep attributes

ERRORcannot have files in DB_RECOVERY_FILE_DEST with keep attributes
CAUSEAn attempt was made to 1) Create a backup piece or image copy in the recovery area with KEEP option. 2) Update the KEEP attributes of an existing backup piece or image copy in the recovery area.
ACTIONReissue RMAN command without KEEP options.