Error installing 1000v - vCenter Server Connection

Hi,

I am installing the 1000v on my test lab and getting this error when setting up the VCenter Server Connection (See attached)

I deploy the ovh template nexus-1000v.4.2.1.SV2.1.1a.ova - everything ok

I open the Nexus1000V-install_CNX.jar --> Select vCenter Server Connection --> Fill in all the detail and when it at the last stage "Registering Extension" I get this error.

Anyone see this before?

Thanks, Joe