getting this while installing jopr agent--
The setup has been completed for the preferences at node [/rhq-agent/default].
The server has rejected the agent registration request. Cause: [org.rhq.core.clientapi.server.core.AgentRegistrationException:The agent asking for registration is trying to register the same address/port [10.66.190.10:16163] that is already registered under a different name [TestAgent]; if this new agent is actually the same as the original, then re-register with the same name]
It looks like you previously had another Jopr agent running with the server.
Have a look at this blog post for a possible solution: http://pilhuhn.blogspot.com/2008/08/rhq-tip-of-day-agent-waiting-at-startup.html
Let us know if it helped