Oracle Message RMAN-06900 - WARNING: unable to generate V$RMAN_STATUS or V$RMAN_OUTPUT row

ERRORWARNING: unable to generate V$RMAN_STATUS or V$RMAN_OUTPUT row
CAUSEThe routine createRmanStatusRow() or createRmanOutputRow() could add new row into V$RMAN_STATUS or V$RMAN_OUTPUT.
ACTIONCheck the associated error messages. If the associated error message indicates a condition that can be corrected, do so, otherwise contact Oracle.