Get-Content scheitert an Rechten

$path="C:\test"  
$zielpath="C:\testziel"  
$changecsv=Import-Csv "‪C:\testziel\change.csv"  



Function Copythis{
    Get-ChildItem -Recurse "$path" -Force | ForEach-Object{  
            $newpath=$($_.FullName.Replace($path,$zielpath))
            (Copy-Item $_.FullName $newpath)
        }     
}

Function ReplaceThis ($CurrentSearchTerm, $NewTerm){
Copythis
        
        ###
            (Get-ChildItem -Recurse "$zielpath" -Exclude 'change.csv', 'replacerv2.ps1'  -Force) | ForEach-Object{  
            Test-Path $_.FullName
            (Get-Content $_.FullName)  | 
            ForEach-Object { 
                ($_ -replace "$CurrentSearchTerm","$NewTerm" )  
            } | 
            Set-Content $_.FullName -Force
        }                              
}


$changecsv | ForEach-Object {ReplaceThis $_.oldterm $_.newterm}