vcHostSystem.configManager.userDirectory returns null

Hi All

I am trying to search for a local user on a ESXi Host (VcHostSystem), and would have thought to use .retrieveUserGroups() of VcUserDirectory

But I am have trouble just getting the VcUserDirectory object

Providing a VcHostSystem as input to the below code, just returns "null"

var vcUserDirectory = vcHostSystem.configManager.userDirectory
System.log(vcUserDirectory)

Any idea on how to get VcUserDirectory of a VcHostSystem?

vCenter Server Appliance 5.5.0 (4180647)

ESXi Host 5.5.0 ((3116895)

vRO Appliance 7.1.0 (4262825)