While adding VMs created by Citrix Provisioning Services, you may receive this error : Error : ‘Error expanding node’ . This issue occurred as the machine catalogue was initially created in PVS version 6.x. and current PVS version is higher than that. This is a well-known issue and a Citrix article is available here . Get It Resolved : RDP to Citrix Studio server, launch PowerShell console. Add Citrix snap-in by inserting below command : Command : asnp Citrix*    List all Machine Catalog configured in the environment by inserting below command Command : get-BrokerMachine    All Machine Catalog information listed

This issue occurred when i wanted to use SQL 2012 in my XenDesktop 7 environment (new setup). This error blocked Admins from creating new XenDesktop Site. Based on Citrix KB , it turned out that Share Management Object (SMO) library needs to be upgraded to SP1 on the server which hosting Citrix Studio. Issues : Unable to create Site on XenDesktop 7 with below error : Cannot write property Collation. This property is not available on SQL Server 7.0 Resolution :  FIrstly, download Shared Management Objects from here : Double click at SMO This screen will launch. Installation will upgrade SMO. Press Yes to this message box.  Press Next   Accept the license, and press Next  This is optional step, press Next once you done  Press Install  Installation in progress... Done. Press Finish .