Changes in powercli?

[JoergenKaare]

Hi old scripts does not work after upgrading to latest version.

$vmname = <vm>

$cluster = Get-cluster -vm $vmname

has worked so far - but in latest version it retruns error:

get-cluster : 28-04-2020 10:33:04 Get-Cluster Value cannot be null.

Parameter name: collection

Changing to

$cluster = Get-vm $vmname | get-cluster

works.

Same thing observed for Remove-vm command.

[LucD]

That type of error has been seen before.

Most of the time it indicates an incorrect installation.

From which PowerCLI version did you upgrade?
And to which version?

Did you follow the steps in Welcome PowerCLI to the PowerShell Gallery – Install Process Updates and more particularly in Updating PowerCLI through the PowerShell Gallery?

[JoergenKaare]

I updated from 11. x to 12.x using update-module command

[LucD]

And you are sure there are no folders left from a pre-6.5.1 PowerCLI version?

What does the following show?

Get-Module -Name VMware* -ListAvailable

$env:PSModulePath

As an ultimate procedure, perhaps remove all PowerCLI related folders and do the Install-Module once more.

[JoergenKaare]

[LucD]

And what is in your $env:PSModulePath?

Does the following work?

$vmname = <vm>

$cluster = Get-cluster -Name * -VM $vmname

This was a working bypass in Re: Get-VM Error after PowerCLI Upgrade

[LucD]

Btw, I just noticed that you had a similar problem already in PowerCLI 6.5.3

Re: new-tagassignment value cannot be null

Was that ever solved (not using the bypass)?

[JoergenKaare]

I rewrote the code to get i working.

[LucD]

So a similar problem was already present when you migrated to 6.5.3?

Did you try the -Name * test I posted earlier?

[JoergenKaare]

Seems to be problem on a seperate server - just tested on a server running 11.5 - works - and on another also running 12. 0 - works, so I'll invesitage why this is a local problem just on one installation.

[JoergenKaare]

I have replaced my management server since then - so It's not the same installation.

[LucD]

Ok, I see.

Could be useful to completely remove PowerCLI from the problematic server.

[JoergenKaare]

Just rebooted the server - ran my module cleanup script and the it worked - strange.

[LucD]

That "Value cannot be null" error often points to a botched install or somehow corrupted environment.

[JoergenKaare]

Thanks, nice to know.