Solved

FTP download Bad Sequence Of Commands

Posted on 2013-11-05
1
314 Views
Last Modified: 2013-12-17
Dim fwr As Net.FtpWebRequest = Net.FtpWebRequest.Create(Server)
            fwr.Credentials = New NetworkCredential(UserName, Password)
            fwr.KeepAlive = False
            fwr.Method = WebRequestMethods.Ftp.ListDirectory
            fwr.Proxy = Nothing


            callName(lblDownloading, "Text", CallType.Set, New Object() {"Starting Download"})
            Dim response As FtpWebResponse = fwr.GetResponse
            Dim responseStream As Stream = response.GetResponseStream
            Dim reader = New StreamReader(responseStream)
            Dim Paths As New Collection
            Dim Names As New Collection
            While Not reader.EndOfStream
                Try
                    Dim File As String = reader.ReadLine
                    If File = ".." OrElse File = "." Then Continue While
                    Threading.Thread.Sleep(500)
                    My.Computer.Network.DownloadFile(Server & "/" & File, startedLocation & "\" & File & "1", "Username", "Password", True, 100, True)
                    Paths.Add(startedLocation & "\" & File)
                    Names.Add(File)
                Catch ex As Exception
                    MsgBox(ex.ToString)
                End Try
            End While

            reader.Close()

            responseStream.Close()

            response.Close()
            For i As Integer = 1 To Paths.Count
                Try
                    My.Computer.FileSystem.DeleteFile(Paths.Item(i))
                    My.Computer.FileSystem.RenameFile(Paths.Item(i) & "1", Names.Item(i))
                Catch ex As Exception
                    MsgBox(ex.ToString)
                End Try
            Next

            proc.StartInfo.FileName = startedLocation & "\" & CommandLineArgs(4) & ".exe"

Open in new window


I use this code to run an update command on another program and update from an FTP server.  This code then starts the given program when done updating.  The problem that i am having is on the third file I get an error saying "Bad Sequence Of Commands".  After researching this error, everything said to change the KeepAlive property to false, which I have done but I am still getting the error.  I have tried deleting the third file just to make sure it wasn't a problem with the file itself, and the "new" third file gave the same error.  Any help would be appreciated.
0
Comment
Question by:scprogs
1 Comment
 
LVL 16

Accepted Solution

by:
AlexPace earned 500 total points
ID: 39625064
A network trace would be a big help.

Why not use Ftp.DownloadFile instead of My.Computer.Network.DownloadFile?

Another possibility is to use a Robo-FTP script for the downloads and then start the other program when done using its EXEC command.  The advantage of this is that it can make a trace log that shows all the FTP traffic so it is easier to debug cryptic server responses.
0

Featured Post

Live: Real-Time Solutions, Start Here

Receive instant 1:1 support from technology experts, using our real-time conversation and whiteboard interface. Your first 5 minutes are always free.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Turn on intranet settings 1 55
Capture logon name 13 70
VB.NET Repostiory Pattern 7 35
How to make a Gridview column hidden (visibility false) in the HTML code? 2 15
In my previous article (http://www.experts-exchange.com/Programming/Languages/.NET/.NET_Framework_3.x/A_4362-Serialization-in-NET-1.html) we saw the basics of serialization and how types/objects can be serialized to Binary format. In this blog we wi…
For those of you who don't follow the news, or just happen to live under rocks, Microsoft Research released a beta SDK (http://www.microsoft.com/en-us/download/details.aspx?id=27876) for the Xbox 360 Kinect. If you don't know what a Kinect is (http:…
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…

815 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

8 Experts available now in Live!

Get 1:1 Help Now