I am trying to use SSH.NET to connect a linux server with SFTP connection to download file to a window directory.

Here is my code

string hostname = "1.1.1.1";
            string username = "test";
            string password = "test";
            string localFilePath = @"C:test";
            string NasFolderPath = “I have no idea about this path”;
            string remoteDestinationPath = "";

            LogWriter.LogWrite("Dest: "+ localFilePath + ", Source: " +NasFolderPath);

            try
            {
                using (var client = new SshClient(hostname, 22, username, password))
                {
                    client.Connect();
                    LogWriter.LogWrite("connectClient");

                    var sftp = new SftpClient(client.ConnectionInfo);
                    sftp.Connect();
                    LogWriter.LogWrite("ConnectSFTP");

                    var files = sftp.ListDirectory(NasFolderPath);
                    LogWriter.LogWrite("ConnectFolder" + files);
                    foreach (var file in files)
                    {
                        LogWriter.LogWrite(file.ToString());
                        if (!file.IsDirectory)
                        {
                            LogWriter.LogWrite("HaveDirectory");
                            using (var fileStream = System.IO.File.Create(Path.Combine(localFilePath, file.Name)))
                            {
                                LogWriter.LogWrite("TryToCopyFile");
                                sftp.DownloadFile(file.FullName, fileStream);
                                LogWriter.LogWrite("File downloaded and moved successfully.");
                            }
                        }
                    }
                    sftp.Disconnect();

                    // Download the file


                    ////Upload the file
                    //using (var fileStream = File.OpenRead("localFilePath"))
                    //{
                    //    client.UploadFile(fileStream, "remoteDestinationPath", true);
                    //}

                    ////Optionally, delete the source file
                    //client.DeleteFile("remoteFilePath");

                    client.Disconnect();
                }
            }
            catch (Exception ex)
            {
                LogWriter.LogWrite($"An error occurred: {ex.Message}");
            }

The path to directory in the linux server is “volume1/TestFile”

I have tried to use
“sftp://[email protected]/volume1/TestFile”
“sftp://[email protected]/volume1/TestFile/”
“1.1.1.1/volume1/TestFile”
“1.1.1.1/volume1/TestFile/”
“sftp://[email protected]/TestFile”
“sftp://[email protected]/TestFile/”
“1.1.1.1/TestFile”
“1.1.1.1/TestFile/”
“1.1.1.1TestFile”

But seems all of this return with an error message “no such file”
What is the correct path for NasFolderPath?
or is there any other error of my code?