Powershell Kopiere Dateien in s Archiv Verzeichnis

Copy-Item : Ein Teil des Pfades "M:\test\xxxxxxxxxxxxxxxxxxxxxx.trn" konnte nicht gefunden werden.  
In Zeile:23 Zeichen:5
+     Copy-Item $_.FullName -Destination $Newpath
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Copy-Item], DirectoryNotFoundException
    + FullyQualifiedErrorId : System.IO.DirectoryNotFoundException,Microsoft.PowerShell.Commands.CopyItemCommand

$SourceFolder = "J:\"  
$ArchiveFolder = "M:\Test"  
$ChangesStarted = (get-date).AddDays(-1)
$IncludeFiles = ("*.bak","*.trn")  

Get-ChildItem $SourceFolder -Recurse -Include $IncludeFiles | Where-Object {$_.LastWriteTime -gt $ChangesStarted} | ForEach-Object {
    $PathArray = $_.FullName.Replace($SourceFolder,"").ToString().Split('\')   

    $Folder = $ArchiveFolder

    for ($i=1; $i -lt $PathArray.length-1; $i++) {
        $Folder += "\" + $PathArray[$i]  
        if (!(Test-Path $Folder)) {
            New-Item -ItemType directory -Path $Folder
        }

    }   
    $NewPath = Join-Path $ArchiveFolder $_.FullName.Replace($SourceFolder,"")  

    Copy-Item $_.FullName -Destination $Newpath
}