Failed to obtain XenServer host list when run powershell Remove-Provscheme

XenServer hosts have retired, but the configuration was not deleted from DDC. When trying to delete the host connection from Studio, error was thrown. When using Powershell Remove-Provscheme to delete the associated provisioning information, error "Failed to obtain XenServer host list" isthrown...

Unable to deploy custom receiver from Store front. Getting " An error occurred while saving changes on the "Deploy Citrix Receiver" property dialog. Please check the log in event viewer and try again."

While trying to add customized "receiver.exe" to deploy receiver option in Storefront, you might get following error while saving it. "An error occurred while saving changes on the "Deploy Citrix Receiver" property dialog. Please check the log in event viewer and try again". It works fine with...