Unable to use new SessionOptions statement in SSIS Script Task :: Support Forum

joerobbi Guest

Unable to use new SessionOptions statement in SSIS Script Task

2018-01-24 20:58

I'm attempting to use the WinSCP assembly for the first time in SSIS, and I can't seem to get it to work (code below). The Script task fails each time with that useless "Exception has been thrown by the target of an invocation" error. Starting at the bottom and incrementally commenting out code, it doesn't start running until I comment out the SessionOptions soOpt = new SessionOptions lines. WinSCP is installed, and I've added the assembly as a Reference on the task, but no joy. Any help would be very much appreciated!

Actual Code (servers/filenames redacted):

using System;
using System.Data;
using Microsoft.SqlServer.Dts.Runtime;
using System.Windows.Forms;
using WinSCP;
 
public void Main()
{
    SessionOptions soOpt = new SessionOptions
    {
        Protocol = Protocol.Sftp
        ,SshHostKeyFingerprint = "ssh-rsa 2048 00:00..."
        ,HostName = "server.company.com"
        ,UserName = "UserName"
        ,SshPrivateKeyPath = @"X:\Directory\Key_Private.ppk"
    };
    using (Session seNew = new Session())
    {
        seNew.ExecutablePath = @"E:\Program Files (x86)\WinSCP\winscp.exe";
        seNew.Open(soOpt);
        TransferOptions xfrOptions = new TransferOptions();
        xfrOptions.TransferMode = TransferMode.Binary;
        TransferOperationResult xfrResult;
        xfrResult = seNew.GetFiles(@"/home/UserName/file.txt", @"X:\Directory\file.txt", false, xfrOptions);
        xfrResult.Check();
    }
}

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martin◆ Site Admin
Joined:: 2002-12-10
Posts:: 41,442
Location:: Prague, Czechia

Re: Unable to use new SessionOptions statement in SSIS Script Task

2018-01-25

The exception has an inner exception for sure. What is it?

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joerobbi Guest

Re: Unable to use new SessionOptions statement in SSIS Script Task

2018-01-25 15:52

That's part of what's killing me; I can't seem to trap an exception from the Script task. Try/Catch and full logging for that task give the error log below.

I admit I'm no expert, so if there's another way to catch that inner exception, I'm all ears. :-)

------------Error Log---------------
OnPreValidate,ServerName,Domain\User,Script_Download,{199F7AF1-A521-4E98-9596-0FD4B91E3FFF},{222A4A31-33C8-48FC-A176-B8663227477E},1/25/2018 8:45:23 AM,1/25/2018 8:45:23 AM,0,0x,
OnPostValidate,ServerName,Domain\User,Script_Download,{199F7AF1-A521-4E98-9596-0FD4B91E3FFF},{222A4A31-33C8-48FC-A176-B8663227477E},1/25/2018 8:45:23 AM,1/25/2018 8:45:23 AM,0,0x,
OnError,ServerName,Domain\User,Script_Download,{199F7AF1-A521-4E98-9596-0FD4B91E3FFF},{222A4A31-33C8-48FC-A176-B8663227477E},1/25/2018 8:45:24 AM,1/25/2018 8:45:24 AM,1,0x,Exception has been thrown by the target of an invocation.
OnTaskFailed,ServerName,Domain\User,Script_Download,{199F7AF1-A521-4E98-9596-0FD4B91E3FFF},{222A4A31-33C8-48FC-A176-B8663227477E},1/25/2018 8:45:24 AM,1/25/2018 8:45:24 AM,0,0x,
OnPostExecute,ServerName,Domain\User,Script_Download,{199F7AF1-A521-4E98-9596-0FD4B91E3FFF},{222A4A31-33C8-48FC-A176-B8663227477E},1/25/2018 8:45:24 AM,1/25/2018 8:45:24 AM,0,0x,

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martin◆ Site Admin
Joined:: 2002-12-10
Posts:: 41,442
Location:: Prague, Czechia

Re: Unable to use new SessionOptions statement in SSIS Script Task

2018-01-25

I do not know SSIS much, so I cannot advice here.

Though did you follow this guide?
Using WinSCP .NET Assembly from SQL Server Integration Services (SSIS)
Particularly did you install the assembly to GAC?

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Carlos Letona Guest

Re: Unable to use new SessionOptions statement in SSIS Script Task

2018-09-12 16:52

I was getting the same exception error, but I just added a static script. By loading the path of the WinSCP.dll, and it worked.

static ScriptMain()
{
    AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(CurrentDomain_AssemblyResolve);
}
 
static Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
{
    if (args.Name.Contains("WinSCPnet"))
    {
        string path = @"C:\Program Files (x86)\WinSCP";
        return Assembly.LoadFile(Path.Combine(path, "WinSCPnet.dll"));
    }
    return null;
}