Adding user to local group script error

Hi all , 

In a bid to improve my powershell knowledge I tried writing a script to add users to local groups , using different function for each group. This is the script :

import-module ActiveDirectory

function Add-RemoteUser{



$domainuser = "domain\"+$user
$Userexist = Get-ADUser -Identity $user

if ($Userexist -eq $null) {Write-host "Wtf?? This user doesn't exist" -ForegroundColor Yellow}


{([ADSI]"WinNT://$Computer/Remote Desktop Users,group").psbase.Invoke("Add",([ADSI]"WinNT://$domainuser").path)}


 I tried running this function but get error :

Exception calling "Invoke" with "2" argument(s): "A member could not be added to or removed from the local group because the member does not exist.
At G:\Add_local Ad user.ps1:28 char:2
+ {([ADSI]"WinNT://$Computer/Remote Desktop Users,group").psbase.Invoke("Add",([ADSI]" ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodTargetInvocation

Looked around and seen a few mentions , the userid I tried does exist in AD , computer name is correct and online . Also am not using Fully qualified domain name for the computer name so no idea why am getting this error. Any ideas?

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Answers (2)

Answer Summary:
Posted by: M P 5 years ago
Purple Belt

Top Answer

Try passing the user as "domain/username" instead of "domain\user" (from your variable) to the Add function.
Posted by: TonyFishers 5 years ago
Yellow Belt
Duuh..of course!  how could I miss that? That was it pal! Many thanks ! 

  • No problem. Glad to help. - M P 5 years ago

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