Host agent connection error in SP10

Hi All,

I am facing an error in ths SAP host agent.

we have upgraded our solution manager system to SP 10.

As the the agentinstallation strategy we have updated our host agent to the latest patch.

the agent version is 720 and patch level is 173.

the trsuted connection step is aldo done.

com.sap.smdagent.plugins.connectors.webservice.SAPHostAgentUserConfigurationException:
Cannot establish connection to SAP Host agent webservice. (Cannot retrieve
Diagnostics agent OS user, file not found
:/usr/sap/DAA/SMDA97/SMDAgent/configuration/installationinfo.properties)

Stuck at this point.

kindly guide.

Thanks,

Subhashini.