Set-WMINameSpaceSecurity.ps1 "DACL cannot be found on this object"

[nebb00]

This is a long shot.

Trying to use the script, but get the following error message running this command

.\Set-WMINamespaceSecurity.ps1 -namespace root/cimv2 -account "LABBY\ben.test2" -operation add -permissions Enable -allowInherit $true

Set-WmiNamespaceSecurity.ps1: The property 'DACL' cannot be found on this object. Verify that the property exists and can be set.

Any thoughts why?