Error while uploading a file to directory

[ebartlomiej89]

Latest version on library throws exception:

2025-01-27 11:28:30.272 | FluentFTP.Exceptions.FtpException
FluentFTP.Exceptions.FtpException: Error while uploading the file to the server. See InnerException for more info. ---> System.TimeoutException: Timed out trying to read data from the socket stream!
w FluentFTP.FtpSocketStream.Read(Byte[] buffer, Int32 offset, Int32 count)
w FluentFTP.FtpSocketStream.ReadLine(Encoding encoding)
w FluentFTP.Client.BaseClient.BaseFtpClient.FluentFTP.IInternalFtpClient.GetReplyInternal(String command, Boolean exhaustNoop, Int32 timeOut, Boolean useSema)
w FluentFTP.Client.BaseClient.BaseFtpClient.FluentFTP.IInternalFtpClient.ExecuteInternal(String command)
w FluentFTP.FtpClient.OpenPassiveDataStream(FtpDataConnectionType type, String command, Int64 restart)
w FluentFTP.FtpClient.OpenDataStream(String command, Int64 restart)
w FluentFTP.FtpClient.OpenWriteInternal(String path, FtpDataType type, Int64 fileLen, Boolean ignoreStaleData)
w FluentFTP.FtpClient.UploadFileInternal(Stream fileData, String localPath, String remotePath, Boolean createRemoteDir, FtpRemoteExists existsMode, Boolean fileExists, Boolean fileExistsKnown, Action1 progress, FtpProgress metaProgress) --- Koniec śladu stosu wyjątków wewnętrznych --- w FluentFTP.FtpClient.UploadFileInternal(Stream fileData, String localPath, String remotePath, Boolean createRemoteDir, FtpRemoteExists existsMode, Boolean fileExists, Boolean fileExistsKnown, Action1 progress, FtpProgress metaProgress)
w FluentFTP.FtpClient.UploadBytes(Byte[] fileData, String remotePath, FtpRemoteExists existsMode, Boolean createRemoteDir, Action1 progress) w RozsylaczDokumentow3.Classes.SendToFTP.<>c__DisplayClass0_2.<CheckConnection>b__1(Task1 n) w Z:\GIT\Rozsyłacz dokumentów\RozsylaczDokumentow18\Classes\SendToFTP.cs:wiersz 151System.TimeoutException: Timed out trying to read data from the socket stream!
w FluentFTP.FtpSocketStream.Read(Byte[] buffer, Int32 offset, Int32 count)
w FluentFTP.FtpSocketStream.ReadLine(Encoding encoding)
w FluentFTP.Client.BaseClient.BaseFtpClient.FluentFTP.IInternalFtpClient.GetReplyInternal(String command, Boolean exhaustNoop, Int32 timeOut, Boolean useSema)
w FluentFTP.Client.BaseClient.BaseFtpClient.FluentFTP.IInternalFtpClient.ExecuteInternal(String command)
w FluentFTP.FtpClient.OpenPassiveDataStream(FtpDataConnectionType type, String command, Int64 restart)
w FluentFTP.FtpClient.OpenDataStream(String command, Int64 restart)
w FluentFTP.FtpClient.OpenWriteInternal(String path, FtpDataType type, Int64 fileLen, Boolean ignoreStaleData)
w FluentFTP.FtpClient.UploadFileInternal(Stream fileData, String localPath, String remotePath, Boolean createRemoteDir, FtpRemoteExists existsMode, Boolean fileExists, Boolean fileExistsKnown, Action`1 progress, FtpProgress metaProgress)

Please help me ;)

[FanDjango]

What are you doing? Source code?

What is happening? Verbose log?

This exception alone is not enough information.

[ebartlomiej89]

This error has occurs when i execute this code.

FtpConfig config = new FtpConfig();

if (passiveMode)
{
    config.DataConnectionType = FtpDataConnectionType.PASV;
}

FtpClient client = new FtpClient(Host, User, Password, Port, config);

try
{
    client.Config.ConnectTimeout = 20000;
    TaskScheduler ts = TaskScheduler.FromCurrentSynchronizationContext();
    client.CheckAsync().ContinueWith(n =>
    {
        if (n.Result == true)
        {
            try
            {
                client.SetWorkingDirectory(Katalog);

                byte[] bytes = new byte[4];

                bytes[0] = Convert.ToByte('T');
                bytes[1] = Convert.ToByte('E');
                bytes[2] = Convert.ToByte('S');
                bytes[3] = Convert.ToByte('T');

                client.UploadBytes(bytes, "test.txt");
                client.DeleteFile("test.txt");

                labelConnectionStatus.Text = " Udało się nawiązać połączenie z serwerem FTP.";
                labelConnectionStatus.ImageAlignToText = ImageAlignToText.LeftCenter;
                labelConnectionStatus.ImageOptions.Image = Properties.Resources.tick16;
                Progress.Hide();
                labelConnectionStatus.Show();
            }
            catch (Exception e)
            {
                Controller.Instance.Log.Error(e);
                labelConnectionStatus.Text = string.Format(" Nie udało się nawiązać połączenia z serwerem FTP.");
                labelConnectionStatus.ImageAlignToText = ImageAlignToText.LeftCenter;
                labelConnectionStatus.ImageOptions.Image = Properties.Resources.cross16;
                Progress.Hide();
                labelConnectionStatus.Show();

                string error = $"Nie udało się nawiązać połączenia z serwerem FTP z powodu:{Environment.NewLine}{e.ToString()}";
                if (!String.IsNullOrWhiteSpace(taskName))
                {
                    error = $"W trakcie sprawdzania połączenia FTP dla zadania {taskName} nie udało się nawiązać połączenia z serwerem FTP z powodu:{Environment.NewLine}{e.ToString()}";
                }

                Controller.Instance.Log.Error(error);
            }
        }
        else
        {
            labelConnectionStatus.Text = " Nie udało się nawiązać połączenia z serwerem FTP.";
            labelConnectionStatus.ImageAlignToText = ImageAlignToText.LeftCenter;
            labelConnectionStatus.ImageOptions.Image = Properties.Resources.cross16;
            Progress.Hide();
            labelConnectionStatus.Show();

            string error = $"Nie udało się nawiązać połączenia z serwerem FTP";
            if (!String.IsNullOrWhiteSpace(taskName))
            {
                error = $"W trakcie sprawdzania połączenia FTP dla zadania {taskName} nie udało się nawiązać połączenia z serwerem FTP";
            }

            Controller.Instance.Log.Error(error);
        }
    }, ts);
}
finally
{
    if (client.IsConnected)
        client.Disconnect();
}

The error is thrown when i run line:
client.UploadBytes(bytes, "test.txt");

Data for connection are ok. Connection was estabilished.

[FanDjango]

               client.SetWorkingDirectory(Katalog);

                byte[] bytes = new byte[4];

                bytes[0] = Convert.ToByte('T');
                bytes[1] = Convert.ToByte('E');
                bytes[2] = Convert.ToByte('S');
                bytes[3] = Convert.ToByte('T');

                client.UploadBytes(bytes, "test.txt");
                client.DeleteFile("test.txt");

I tried such code. It worked for me.

Please provide a log of what is happening to cause the timeout exception