Oracle Message TNS-01155 - Incorrectly specified SID_LIST_string parameter in LISTENER.ORA

ERROR	Incorrectly specified SID_LIST_string parameter in LISTENER.ORA
CAUSE	SID_LIST_ in LISTENER.ORA has an error in it.
ACTION	Be sure this parameter is specified as described in the Oracle9i Net Services Reference Guide. For example, SID_LIST_LISTENER = (SID_LIST=(SID_DESC=(SID_NAME=)(ORACLE_HOME=)))