Message Oracle ORA-28592 - agent control utility: agent SID not set

ERRORagent control utility: agent SID not set
CAUSEThe agent needs to know the value of the AGENT_SID parameter before it can process any commands. If it does not have a value for AGENT_SID then all commands will fail.
ACTIONIssue the command SET AGENT_SID and then retry the command that failed.