Error while testing Jco Destinations

Hi all,

I have created JCO destination for Dictionary Metadata and Application Data but after testing the connection I am getting the following error :

com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=tslde GROUP=PUBLIC R3NAME=DEV MSSERV=sapmsDE PCS=1 ERROR service 'sapmsDE' unknown TIME Tue Jun 20 01:20:28 2006 RELEASE 640 COMPONENT NI (network interface) VERSION 37 RC -3 MODULE ninti.c LINE 494 DETAIL NiPGetServByName2: service 'sapmsDEV' not found SYSTEM CALL getservbyname_r COUNTER 1

Need some inputs to solve this.

Regards,

Pavanmeet.