TNS-01101: Could not find service name

Hi,

I have created one database instance on solaris cluster. the following output has come when i execute the status with lsnrctl.


LSNRCTL> services listeneradvfrw1
Connecting to (ADDRESS=(PROTOCOL=TCP)(Host=mosel1)(Port=1526)(QU EUESIZE=2000))
Services Summary...
Service "ADVFRW" has 2 instance(s).
Instance "ADVFRW1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1 refused:0 state:ready
LOCAL SERVER
Instance "ADVFRW2", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
REMOTE SERVER
(address=(protocol=tcp)(HOST=localhost)(PORT=1526) )
The command completed successfully

But, when i execute same command as another user which has same group id, it is failing with the following error message.

ash-2.05$ execRTPenv -p 99 /export/home/oracle/products/10.1.0/bin/lsnrctl status listeneradvfrw1

LSNRCTL for Solaris: Version 10.1.0.4.0 - Production on 05-OCT-2007 11:01:38

Copyright (c) 1991, 2004, Oracle. All rights reserved.

TNS-01101: Could not find service name

Please help to solve this problem. Please note that I am new to this database administration. But, I have to solve this problem.