Problem:-

RMAN-03009: failure of allocate command on ORA_AUX_SBT_TAPE_1 channel at 10/19/2018 23:10:08
ORA-19554: error allocating device, device type: SBT_TAPE, device name:
ORA-27209: syntax error in device PARMS - unknown keyword or missing =

Solution:-

run
{
ALLOCATE AUXILIARY CHANNEL aux1 TYPE DISK;
duplicate target database to GOLUAT1 from active database;
}