The remote server returned an error (550) file unavailable

Question

Hello,

 

The remote server returned an error (550) file unavailable (e.g. file not found no access).

 

When i am downloading two files one is 21 bytes only Date.txt file and another one around 2 GB .zip file.
Zip file downloading successfully but when Date.txt was downloading so its getting error:
Please help me.

How it can be resolve?

 

I am trying this code from file download from FTP.:-

 

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)

{

string[] files = ReadFileList();

FTPSettings.IP = "xx.xx.xxx.xxx/TextureData";

FTPSettings.UserID = "xxxx";

FTPSettings.Password = "xxx";

//FtpWebRequest reqFTP = null;

//Stream ftpStream = null;

foreach (string file in files)

{

//string fileName = e.Argument.ToString();

FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://" + FTPSettings.IP + "/" + file);

request.Credentials = new NetworkCredential(FTPSettings.UserID, FTPSettings.Password);

request.Method = WebRequestMethods.Ftp.GetFileSize;

request.Proxy = null;

long fileSize; // this is the key for ReportProgress

using (WebResponse resp = request.GetResponse())

fileSize = resp.ContentLength;

request = (FtpWebRequest)WebRequest.Create("ftp://" + FTPSettings.IP + "/" + file);

request.Credentials = new NetworkCredential(FTPSettings.UserID, FTPSettings.Password);

request.Method = WebRequestMethods.Ftp.DownloadFile;

using (FtpWebResponse responseFileDownload = (FtpWebResponse)request.GetResponse())

using (Stream responseStream = responseFileDownload.GetResponseStream())

using (FileStream writeStream = new FileStream(@"C:\Program Files (x86)\xxxx\" + file, FileMode.Create))

{

int Length = 2048;

Byte[] buffer = new Byte[Length];

int bytesRead = responseStream.Read(buffer, 0, Length);

int bytes = 0;

while (bytesRead > 0)

{

writeStream.Write(buffer, 0, bytesRead);

bytesRead = responseStream.Read(buffer, 0, Length);

bytes += bytesRead;// don't forget to increment bytesRead !

int iProgress = 0;

int totalSize = (int)(fileSize) / 1000; // Kbytes

if (totalSize > 0)

{

iProgress = (bytes / 1000) * 100 / totalSize;

}

backgroundWorker1.ReportProgress(iProgress, totalSize);

}

}

string zipFileExtension = Path.GetExtension(file);

if (zipFileExtension == ".zip")

{

string zipToUnpack = @"C:\Program Files (x86)\xxxx\" + file;

string unpackDirectory = @"C:\Program Files (x86)\xxxx\";

using (ZipFile zip1 = ZipFile.Read(zipToUnpack))

{

foreach (ZipEntry ze in zip1)

{

ze.Extract(unpackDirectory, ExtractExistingFileAction.OverwriteSilently);

}

}

}

}

}

public static class FTPSettings

{

public static string IP { get; set; }

public static string UserID { get; set; }

public static string Password { get; set; }

}

public string[] ReadFileList()

{

//Debugger.Break();

string[] mydownloadFiles;

StringBuilder myresult = new StringBuilder();

//WebResponse myresponse = null;

StreamReader myreader = null;

FtpWebRequest myreqFTP = null;

try

{

FTPSettings.IP = "xx.xx.xxx.xxx/TextureData";

FTPSettings.UserID = "xxxx";

FTPSettings.Password = "xxxx";

myreqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + FTPSettings.IP + "/"));

myreqFTP.Method = WebRequestMethods.Ftp.ListDirectory;

myreqFTP.UseBinary = true;

myreqFTP.Credentials = new NetworkCredential(FTPSettings.UserID, FTPSettings.Password);

FtpWebResponse response = (FtpWebResponse)myreqFTP.GetResponse();

myreader = new StreamReader(response.GetResponseStream());

string myline = myreader.ReadLine();

while (myline != null)

{

myresult.Append(myline);

myresult.Append("\n");

myline = myreader.ReadLine();

}

// to remove the trailing '\n'

myresult.Remove(myresult.ToString().LastIndexOf('\n'), 1);

return myresult.ToString().Split('\n');

}

catch (Exception ex)

{

if (myreader != null)

{

myreader.Close();

}

mydownloadFiles = null;

return mydownloadFiles;

}

 

Please help me.

Thanks in Advance.
Ankit Agarwal
Software Engineer