在Powershell中通过PSFTP下载文件

Question

我有一个脚本，需要从ftp目录下载文件。在此目录中，我有几个不需要的文件夹，以及需要使用以下脚本下载的四个.log文件：

# Import Custom PSFTP Module (PowerShell FTP).
Import-Module PSFTP

$FtpServer = "***.***.***.***"
$User = "USER"
$PWD = "****"
$Password =  ConvertTo-SecureString $Pwd -AsPlainText -Force
$FtpCredentials = New-Object System.Management.Automation.PSCredential ($User, $Password)
Set-FTPConnection -Credentials $FtpCredentials -Server $FtpServer -Session MyFtpSession
$FtpSession = Get-FTPConnection -Session MyFtpSession
$ServerPath = "/sd0/"
$LocalPath  = "C:\ftp"
$fileList   = Get-FTPChildItem -Session $FtpSession -Path $ServerPath -Filter "*.log"
foreach ($element in $fileList ) {
 $filename = $ServerPath  + $element.name
 Get-FTPItem  -Session $FtpSession  -Path $filename -LocalPath $LocalPath

我有输出：

ContentLength           : -1
Headers                 : {}
SupportsHeaders         : True
ResponseUri             : ftp://***.***.***.***/
StatusCode              : ClosingData
StatusDescription       : 226 Transfer complete

LastModified            : 1.1.0001 г. 00:00:00 ч.
BannerMessage           : 220 FTP server ready.

WelcomeMessage          : 230 Login OK

ExitMessage             : 221 Bye

IsFromCache             : False
IsMutuallyAuthenticated : False
ContentType             :

本地目录中没有下载的文件。在详细模式下显示为：

VERBOSE: Performing the operation "Download item: 'ftp://***.***.***.***/sd0/file1.log'" on target "".
VERBOSE: Performing the operation "Download item: 'ftp://***.***.***.***/sd0/file2.log'" on target "".
VERBOSE: Performing the operation "Download item: 'ftp://***.***.***.***/sd0/file3.log'" on target "".
VERBOSE: Performing the operation "Download item: 'ftp://***.***.***.***/sd0/file4.log'" on target "".

有什么想法要解决吗？