的PowerShell：命令 “GET-ChildItem IIS：\网站” 将导致错误

Question

如下图所示

简单的脚本导致我的电脑上的异常：

Import-Module WebAdministration 
Get-ChildItem IIS:\Sites 

结果：

powershell -NonInteractive .\test.ps1 
Get-ChildItem : Could not load file or assembly 'Microsoft.PowerShell.Commands.Management' or one of its dependencies. The system cannot 
find the file specified. 
At C:\...\test.ps1:3 char:1 
+ Get-ChildItem IIS:\Sites 
+ ~~~~~~~~~~~~~~~~~~~~~~~~ 
    + CategoryInfo   : NotSpecified: (:) [Get-ChildItem], FileNotFoundException 
    + FullyQualifiedErrorId : System.IO.FileNotFoundException,Microsoft.PowerShell.Commands.GetChildItemCommand 

但是，如果我加写在脚本的开始-Host正常工作：

Write-Host '!!!' 
Import-Module WebAdministration 
Get-ChildItem IIS:\Sites 

不幸的是，我不知道什么可能导致此问题。有人能帮助我吗？

Answer 1

Import-Module WebAdministration 
# adding sleep here resolves the issue for me 
sleep 2 
Get-ChildItem IIS:\Sites 

Answer 2

我知道这是一个老问题，但今天我面临同样的问题。找到了以下形式的解决方案，它为我工作。

Dmitry said

try 
{ 
    $serviceSite = Get-Item "IIS:\sites\$siteName" -ErrorAction "SilentlyContinue" 
} 
catch [System.IO.FileNotFoundException] 
{ 
# Try again (workaround for System.IO.FileNotFoundException issue) 
    $serviceSite = Get-Item "IIS:\sites\$siteName" -ErrorAction "SilentlyContinue" 
}