The workaround is to supply value for -HostFailureAction parameter. You can use the configured host failure action for the Update Manager or one of the values: FailTask, Retry, PowerOffVMsAndRetry, SuspendVMsAndRetry

$vumConfig = Get-VumConfig
$entity = Get-Inventory "<host_ip>"
#this will return only attached to the host baselines
$baseline = Get-Baseline -Entity $entity
Remediate-Inventory -Entity $entity -Baseline $baseline -HostFailureAction $vumConfig.HostFailureAction

Update Manager Powershell works with VITK 1. I used VITK 1 for testing the script.

Hi everyone,

There is an incompatibility between VI Toolkit 1.5 and the VUM cmdlets. For now if you need to use the VUM cmdlets you will need to do so on a system that has VITK 1.0 installed.

This incompatibility will be resolved by a minor update to VI Toolkit that will be shipped when the next version of VUM ships. The next version of VUM will have cmdlets that support that version as well as the current version.

We've updated the release notes to note the incompatibility. Sorry for the inconvenience.