添加成员：无法添加名为“”的成员，因为已存在具有该名称的成员

Question

尝试运行脚本时，我收到以下错误消息。

错误：

Add-Member : Cannot add a member with the name "CAllerID*" because a member with that name already exists. To overwrite the member anyway, add the Force parameter to 
your command.

脚本：

    $output = Get-ADUser -Identity user -Properties givenName, sn, displayname, samaccountname, title

$output | Add-Member -membertype noteproperty -name "CAllerID*" -value $null | Export-CSV -Path "c:\tmp\users.csv" -NoTypeInformation -Encoding UTF8

Answer 1

将 -Force 和 -PassThru 添加到 Add-Member 调用：

-Force 确保任何现有的冲突属性都被覆盖
-PassThru导致Add-Member输出修改后的输入对象

$output | Add-Member -MemberType NoteProperty -Name "CAllerID*" -Value $null -Force -PassThru | Export-CSV -Path "c:\tmp\users.csv" -NoTypeInformation -Encoding UTF8

如果您想进一步 trim Get-ADUser 返回的属性集合，请使用 Select-Object:

$output | Select-Object -Property givenName,sn,displayName,SAMAccountName,Title | Add-Member -MemberType NoteProperty -Name "CAllerID*" -Value $null -Force -PassThru | Export-CSV -Path "c:\tmp\users.csv" -NoTypeInformation -Encoding UTF8

添加成员：无法添加名为“”的成员，因为已存在具有该名称的成员

Add-Member : Cannot add a member with the name "" because a member with that name already exists

powershell