.net - PowerShell 找不到过载

Question

我正在尝试使用 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，只是找不到方法的重载 UploadFile我难住了。

该方法的定义在这里

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)

我正在尝试使用此重载

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

领域 uploadCallback根据文档是可选的，在我的简单脚本中不需要，但即使添加它也失败。我试过调用它的方法如下，它们都失败了。

如何成功调用这些方法之一？我尝试的示例如下。

示例

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

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

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

失败

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

下一次尝试都失败了，基本上是相同的错误消息

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

错误

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

尝试使用 $null第三个参数

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

失败

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

Answer 1

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)