A great discription of the error here http://serverfault.com/questions/450093/error-while-adding-new-host-to-vm-center
And the ding dong resolution is don’t try to add a ESXi 5.1 to a 5.0 vcenter
A great discription of the error here http://serverfault.com/questions/450093/error-while-adding-new-host-to-vm-center
And the ding dong resolution is don’t try to add a ESXi 5.1 to a 5.0 vcenter