Issue with New-OrgNetwork in vCloud 5.1

Hi,

I'm trying to create an OrgVDC Network for my newly created OrgVDCs via PowerCLI. Unfortunately I'm getting an erorr stating:

I am referencing: http://www.vmware.com/support/developer/PowerCLI/PowerCLI51/html/New-OrgNetwork.html

Command I am using is:

New-OrgNetwork -Direct -Name 'MyOrgDirectNetwork' -Org 'MyOrganization' -ExternalNetwork 'MyExternalNetwork' -Description "None"

Please tell me this is not a another bug and I'm doing something wrong. I really do not want to go creating 20 OrgVDC networks manually.

Thanks!