PowerCLI Reference functions failing

[nicmac]

Can someone help me determine why functions from the PowerCLI reference book fail on this line?

$perfMgr = Get-View (Get-View ServiceInstance).content.perfManager

The error is:

Get-View : Cannot validate argument on parameter 'VIObject'. The argument is null or empty. Supply an argument that is not null or empty and then try the comma

nd again.

At line:1 char:20

+ $perfMgr = Get-View <<<<  (Get-View ServiceInstance).content.perfManager

    + CategoryInfo          : InvalidData: (:) [Get-View], ParameterBindingValidationException

    + FullyQualifiedErrorId : ParameterArgumentValidationError,VMware.VimAutomation.ViCore.Cmdlets.Commands.DotNetInterop.GetVIView

[LucD]

Are you connected to a vSphere server (ESXi or vCenter) ?

Check by displaying the content of

$global:defaultVIServers

If that doesn't return anything, you will have to use the Connect-VIServer cmdlet to connect to an ESXi server or a vCenter.

[nicmac]

Thank you for your reply. Yes, I am connected to a vCenter session when this happens. I can run other cmdlets fine.

[LucD]

Ok, does

Get-View ServiceInstance

return anything ?