Winscp with SSIS包给出System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj,Object []参数,Object []参数)

Question

使用nuget安装程序安装WinSCP .net.

Visual Studio 2013

SSIS BIDS 2012

项目引用是正确的 - 指向已安装的DLL

Project包含一个脚本,该脚本是winscp站点的示例代码的精简版本.尝试实例化SessionOptions对象的第一行失败.如果我删除SessionOptions对象,那很好.

在GAC中按照说明注册winscpnet.dll.

在visual studio ssis调试器中启动脚本,得到这个:

在System.RevlectionMethodHandle.InvokeMethod(Object target,Object [] arguments,Signature sig,Boolean constructor)at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj,Object [] parameters,Object [] arguments)at System.Reflection.RuntimeMethodInfo.
System.RuntimeType.InvokeMember(String name,BindingFlags bindingFlags,Binder binder,Object target,Object [] providedArgs,ParameterModifier [] modifiers,CultureInfo culture ,Invoke(Object obj,BindingFlags invokeAttr,Binder binder,Object []参数,CultureInfo文化),String [] namedParams)在Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTATaskScriptingEngine.ExecuteScript()

    public void Main()
    {

        SessionOptions sessionOptions = new SessionOptions
        {
            Protocol = Protocol.Sftp,
            // To setup these variables, go to SSIS > Variables.
            // To make them accessible from the script task, in the context menu of the task,
            // choose Edit. On the Script task editor on Script page, select ReadOnlyVariables,
            // and tick the below properties.
            HostName = "",
            UserName = "",
            Password = "",
            SshHostKeyFingerprint = ""
        };

            bool fireAgain = false;

         Dts.Events.FireInformation(0, null,
                        string.Format("Upload of  succeeded"),
                        null, 0, ref fireAgain);



            Dts.TaskResult = (int)DTSExecResult.Success;
    }

添加流程和流程的屏幕提示

更新:修改代码如下...完全相同的结果

        public void Main()
    {
        bool fireAgain = false;

        try
        {
            SessionOptions sessionOptions = new SessionOptions
            {
                Protocol = Protocol.Sftp,
                // To setup these variables, go to SSIS > Variables.
                // To make them accessible from the script task, in the context menu of the task,
                // choose Edit. On the Script task editor on Script page, select ReadOnlyVariables,
                // and tick the below properties.
                HostName = "",
                UserName = "",
                Password = "",
                SshHostKeyFingerprint = ""
            };
        }
        catch (Exception ex)
        {

            Dts.Events.FireInformation(0, null,
                           ex.InnerException.Message,
                           null, 0, ref fireAgain);
        }               

            Dts.TaskResult = (int)DTSExecResult.Success;
    }

Answer 1

在SSIS脚本任务中使用第三方DLL时,我们需要执行GAC.

请打开命令提示符.

cd "C:\Program Files (x86)\Microsoft SDKs\Windows\v8.0A\bin\NETFX 4.0 Tools"

运行以下命令.

gacutil -i <"Path of WinSCP DLL">

运行GAC命令后,Scrip任务应按预期运行.在运行时SSIS无法获取DLL引用,这是导致此错误的原因.

希望这个有效!!