Error while adding a powershell host..

Hi,

I am trying to add PowerShell host (following http://pubs.vmware.com/vsphere-55/index.jsp#com.vmware.vsphere.vco_use_plugins.doc/GUID-88A9A9A1-CF04-401A-AE55-2CF3446643DA.html ) and I am getting error as "Client not found in Kerberos database (6) (Dynamic Script Module name : addPowerShellHost#16)" , I am not sure what is wrong, please help me to resolve this issue..

Thanks !!

http://pubs.vmware.com/vsphere-55/index.jsp#com.vmware.vsphere.vco_use_plugins.doc/GUID-88A9A9A1-CF04-401A-AE55-2CF3446643DA.html