"invalid or missing parameter in Net8 service name definition"
*Cause: There was an invalid or missing Heterogeneous Services parameter
in the Net8 service name definition stored in either the
TNSNAMES.ORA file or in the Oracle Names Server.
*Action: Ask your DBA to make sure the information in the Net8 service
definition is correct and complete. The correct information that
should be included in the Net8 service definition can be found in
the agent's documentation.