When deploying a new VDI from the vWorkspace Management Console the error “ERROR: Action = unknown action, ERROR: CHyperV::scvmmCreateVmUsingDiffDisk: Object reference not set to an instance of an object” is displayed.
This can be caused if the SCVMM Server has the vWorkspace 7.2 Maintenance Release 1 Quest Broker Helper Service running, however the vWorkspace Connection Broker and Database have not been upgraded to vWorkspace 7.2 Maintenance Release 1.
Resolution 1: Upgrade the vWorkspace Connection Broker and Database to vWorkspace 7.2 Maintenance release 1.
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