ORA-19716: error processing format /u06/oradata/UIAPPDV2/%b to generate name for backup

When trying to restore using the "FROM PLATFORM" option, RMAN throws ora-19716 when using the %b wildcard. I am curious why, and how to avoid the error while still using the functionality of %b. Any ideas?

startup force nomount;

run{

allocate channel C0 device type disk;

allocate channel C1 device type disk;

allocate channel C2 device type disk;

allocate channel C3 device type disk;

allocate channel C4 device type disk;

RESTORE

   FROM PLATFORM 'Linux x86 64-bit'

   FOREIGN DATABASE

   FORMAT '/u06/oradata/UIAPPDV2/%b'

   FROM BACKUPSET '/u02/backup/UIAPPDV2/full_backup_49u3be2m_1_1';

}

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============