尝试检索域中的域策略和组织单位（OU）时遇到错误。
脚本：

Import-Module GroupPolicy
    $forest = [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest()
    $domains = $forest.Domains|ForEach-Object { $_.Name }
    
    
    foreach ($domain in $domains) {
        Write-Host "Domain Name: $domain"
        # Connect to the domain
        $gpmc = New-Object -ComObject "GPMgmt.GPM"
        $gpmcDomain = $gpmc.GetDomain($domain)
        $gpos = $gpmcDomain.GetGPOs("All")
            foreach ($gpo in $gpos) {
                Write-Host "  GPO Name: $($gpo.DisplayName)"
                }
            
            foreach ($ou in $ous) {
                Write-Host "  OU Name: $($ou.Name)"
            }
    
    }

错误类型：

这就是我得到的错误。

PS C:\Users\subhavignesh> C:\testing_gpo.ps1
    Domain Name: ngmgmt.internal
    Cannot find an overload for "GetDomain" and the argument count: "1"
    At C:\testing_gpo.ps1:10 char:5
    +     $gpmcDomain = $gpmc.GetDomain($domain)
    +     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        + CategoryInfo          : NotSpecified: (:) [], MethodException
        + FullyQualifiedErrorId : RuntimeException
     
    You cannot call a method on a null-valued expression.
    At C:\testing_gpo.ps1:11 char:5
    +     $gpos = $gpmcDomain.GetGPOs("All")
    +     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
        + FullyQualifiedErrorId : InvokeMethodOnNull

1）我需要知道如何连接到IPv6 2）我需要在我的域下输出我的IPv6和GPO策略