When trying to configure a VMware vCenter based hypervisor connection within Citrix Studio in order to gain access to its resources, i.e. attached storage, et al, and utilize either PVS and/or MCS for VM management, you might receive the following error in case a self-signed certificate is in place on the vCenter server:
"Cannot connect to the vCenter server due to a certificate error. Make sure that the appropiate certificates are installed on the vCenter server, and install the appropiate certificates on the following machines: <FQDN XD Controller>"