PowerShell 找不到过载

我正在尝试使用https://sshnet.codeplex.com/ https://sshnet.codeplex.com/允许 PowerShell 脚本将文件上传到 SFTP 服务器。一切似乎都有效，除了找不到该方法的重载UploadFile我被难住了。

方法的定义在这里

TypeName   : Renci.SshNet.SftpClient
Name       : UploadFile
MemberType : Method
Definition : void UploadFile(System.IO.Stream input, string path, System.Action[uint64] uploadCallback),
             void UploadFile(System.IO.Stream input, string path, bool canOverride, System.Action[uint64] uploadCallback)

我正在尝试使用这个重载

UploadFile(System.IO.Stream input, string path, System.Action[uint64] uploadCallback)

场uploadCallback根据文档，它是可选的，并且在我的简单脚本中不需要，但即使添加它也会失败。我尝试过的调用方式如下，但都失败了。

如何成功调用这些方法之一？我尝试过的示例如下。

Examples

$client = New-Object Renci.SshNet.SftpClient($ftpHost, $ftpPort, $ftpUser, $ftpPass)
$client.Connect()

# ... get stream of file to upload here ...

$client.UploadFile($sourceStream, "$ftpPath$output")

失败与

Cannot find an overload for "UploadFile" and the argument count: "2".
At F:\MyScript.ps1:170 char:2
+     $client.UploadFile($sourceStream, "$ftpPath$output")
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodException
    + FullyQualifiedErrorId : MethodCountCouldNotFindBest

接下来的尝试都失败，并基本上显示相同的错误消息

$action = [System.Action[uint64]]
$client.UploadFile($sourceStream, "$ftpPath$output", $action)

Error

Cannot find an overload for "UploadFile" and the argument count: "3".
At F:\MyScript.ps1:170 char:2
+     $client.UploadFile($sourceStream, "$ftpPath$output", $action)
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodException
    + FullyQualifiedErrorId : MethodCountCouldNotFindBest

尝试用$null第三个参数

$client.UploadFile($sourceStream, "$ftpPath$output", $null)

失败了

Cannot find an overload for "UploadFile" and the argument count: "3".
At F:\MyScript.ps1:169 char:2
+     $client.UploadFile($sourceStream, "$ftpPath$output", $null)
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodException
    + FullyQualifiedErrorId : MethodCountCouldNotFindBest

尝试通过在方法调用中提供类型信息来为 PowerShell 提供更多帮助，例如：

$client.UploadFile($sourceStream, "$ftpPath$output", [Action[uint64]]$null)