ORA-28529: invalid or missing parameter

admin

ORA-28529: invalid or missing parameter in Net8 service name definition
Cause: There was an invalidor 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 makesure 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.