VMware: PowerCLI Errors

PowerCLI Errors KB ID 0001830


I was doing some work recently and tried to connect to my vCenter server and was greeted with this.

PowerCLI Error instance of an object error

PS C:\Users\administrator.PNL> connect-viserver vc-70.pnl.com
connect-viserver : Object reference not set to an instance of an object.
At line:1 char:1
+ connect-viserver vc-70.pnl.com
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Connect-VIServer], NullReferenceException
+ FullyQualifiedErrorId : System.NullReferenceException,VMware.VimAutomation.ViCore.Cmdlets.Commands.ConnectVIServer

Some internet searching led me to find out I simply needed to update PowerCLI  Рbut when I did that this happened.

PowerCLI Error Update Authenticode

PS C:\Users\administrator.PNL> Update-Module VMware.PowerCLI
PackageManagement\Install-Package : Authenticode issuer ‘CN=DigiCert Trusted Root G4, OU=www.digicert.com, O=DigiCert
Inc, C=US’ of the new module ‘VMware.VimAutomation.Sdk’ with version ‘’ is not matching with the authenticode issuer ‘CN=VeriSign Class 3 Public Primary Certification Authority – G5, OU=”(c) 2006 VeriSign, Inc. – For authorized use only”, OU=VeriSign Trust Network, O=”VeriSign, Inc.”, C=US’ of the previously-installed module ‘VMware.VimAutomation.Sdk’ with version ‘’. If you still want to install or update, use -SkipPublisherCheck parameter. At C:\Program Files\WindowsPowerShell\Modules\PowerShellGet\\PSModule.psm1:2089 char:20 + … $sid = PackageManagement\Install-Package @PSBoundParameters + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : InvalidOperation: (Microsoft.Power….InstallPackage:InstallPackage) [Install-Package],
+ FullyQualifiedErrorId : AuthenticodeIssuerMismatch,Validate-ModuleAuthenticodeSignature,Microsoft.PowerShell.PackageManagement.Cmdlets.InstallPackage

Errm OK?

Solution: PowerCLI Errors

Seems like the fix for both errors is to simply update PowerCLI, updating actually does not work (as you can see). So, you need to FORCE an clean install of PowerCLI and also ignore the certificate error (above) with a SkipPublisherCheck switch.

Install-Module VMware.PowerCLI -Force -SkipPublisherCheck

Install PowerCLI Force Skip Publisher Check

Then all was well with the world!

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Author: PeteLong

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