Installation of AKS on Azure Stack HCI cluster based on instructions at https://github.com/Azure/AksHcionAzureVM fails.

When trying to bring up the AKS platform services cluster, I get the following error message -

[Install-AksHci]:Install-Moc failed. Exception [This typically indicates an issue happened while registering the resource name as a computer object with the domain controller and/or the DNS server. Please check the domain controller and DNS logs for related error messages. Error: [Start-FailoverClusterResource failed Exception [Failed to start cluster resource [MOC Cloud Agent Service]. ExtendedStatus: CurrentState: Offline, LastOperationStatusCode: 0, StatusInformation: 0.. Exception caught is: 'An error occurred while attempting to bring the resource 'MOC Cloud Agent Service' online.'] Stacktrace [at Start-FailoverClusterResource, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Common.psm1: line 2853 at Add-FailoverClusterGenericRole, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Common.psm1: line 3024 at Install-CloudAgent, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Moc.psm1: line 1363 at Install-MocAgents, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Moc.psm1: line 1282 at Initialize-Cloud, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Moc.psm1: line 1188 at Install-MocInternal, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Moc.psm1: line 1131 at Install-Moc, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Moc.psm1: line 212 at Install-AksHciInternal, C:\Program Files\WindowsPowerShell\Modules\AksHci\1.1.30\AksHci.psm1: line 4506 at Install-AksHci, C:\Program Files\WindowsPowerShell\Modules\AksHci\1.1.30\AksHci.psm1: line 799 at SmeSubmit, <No file>: line 28 at <ScriptBlock>, <No file>: line 39]]] Stacktrace [at Add-FailoverClusterGenericRole, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Common.psm1: line 3030 at Install-CloudAgent, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Moc.psm1: line 1363 at Install-MocAgents, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Moc.psm1: line 1282 at Initialize-Cloud, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Moc.psm1: line 1188 at Install-MocInternal, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Moc.psm1: line 1131 at Install-Moc, C:\Program Files\WindowsPowerShell\Modules\Moc\1.0.24\Moc.psm1: line 212 at Install-AksHciInternal, C:\Program Files\WindowsPowerShell\Modules\AksHci\1.1.30\AksHci.psm1: line 4506 at Install-AksHci, C:\Program Files\WindowsPowerShell\Modules\AksHci\1.1.30\AksHci.psm1: line 799 at SmeSubmit, <No file>: line 28 at <ScriptBlock>, <No file>: line 39] InnerException[Failed to start cluster resource [MOC Cloud Agent Service]. ExtendedStatus: CurrentState: Offline, LastOperationStatusCode: 0, StatusInformation: 0.. Exception caught is: 'An error occurred while attempting to bring the resource 'MOC Cloud Agent Service' online.'].