Oracle Database Discussions

We are using dataguard to help us migrate off of ocfs and over to ASM. I am attempting to create the standby database and believe that I have all of the parameters setup correctly e.g. db_file_name_convert and log_file_name_convert but when I run my rman script that uses duplicate to create the standby db I get the following errors during standby db creation when rman attempts to mount the standby db right after the standby control files are created.
channel dev_0: restored backup piece 1
piece handle=fljsnrg1_1_1 tag=TAG20081009T145109
channel dev_0: restore complete, elapsed time: 00:06:36
output filename=+DATA_DG/rcidb/control01.ctl
output filename=+REDO_DG/rcidb/control02.ctl
Finished restore at 14-OCT-08

sql statement: alter database mount standby database
released channel: dev_0
released channel: dev_1
released channel: dev_2
released channel: dev_3
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 10/14/2008 15:12:05
RMAN-03015: error occurred in stored script Memory Script
RMAN-03009: failure of sql command on clone_default channel at 10/14/2008 15:12: 05
RMAN-11003: failure during parse/execution of SQL statement: alter database moun t standby database
ORA-15171: invalid syntax in the alias path after 'RCIDB/'

RCIDB is the name of our db and the directoty exists in the correct ASM disk group but still we get the error ORA-15171: invalid syntax in the alias path after 'RCIDB/'
?
Has anyone encountered the same.
Thanks.