When attempting to delete some of the desktops from xendesktop catalog, administrators are shown the following error :

The uuid you supplied was invalid

VDAs that could not be removed through Citrix Studio could be removed through Power shell. Run the following power shell cmdlets one by one to remove the machine.

asnp citrix*
Remove-brokermachine -machinename "domain\machinename" -Force

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Problem Cause

If a VM is removed/deleted from the Hypervisor directly, the VM ID stored in the Xendesktop database will no longer be valid. Attempting to remove/delete vm through studio will try to validate the VM id and hence the operation fails.

Administrator is not able to remove some desktops from the Xendesktop Catalog. These desktops were removed at hypervisor level earlier.