Uipath SFTP connection - sftp

Question

l would like to use the "With Ftp session" component to configure my connection to the SFTP server, However instead of using password i am using a key file.
But i always have this error when i try to connect
Here is my config:

Answer 1

The With FTP Session activity ignored the private key argument and always tried to connect with a password. The error you were getting were due to the SSH library receiving an unitialized password variable.
This is the update code for the Activities/FTP/UiPath.FTP/SftpSession.cs which adds PrivateKey authentication mechanism. I will contribute this fix to the Github meanwhile.
Note that you will have to clone and build
https://github.com/UiPath/Community.Activities) for this to work.
public SftpSession(FtpConfiguration ftpConfiguration)
{
if (ftpConfiguration == null)
{
throw new ArgumentNullException(nameof(ftpConfiguration));
}
ConnectionInfo connectionInfo = null;
var auths = new List<AuthenticationMethod>();
if (!String.IsNullOrEmpty(ftpConfiguration.Password))
{
auths.Add(new PasswordAuthenticationMethod(ftpConfiguration.Username, ftpConfiguration.Password));
}
if (!String.IsNullOrEmpty(ftpConfiguration.ClientCertificatePath)) {
PrivateKeyFile keyFile = new PrivateKeyFile(ftpConfiguration.ClientCertificatePath, ftpConfiguration.ClientCertificatePassword);
var keyFiles = new[] { keyFile };
auths.Add(new PrivateKeyAuthenticationMethod(ftpConfiguration.Username, keyFiles));
}
if (auths.Count == 0)
{
throw new ArgumentNullException("Need to provide either private key or password");
}
if (ftpConfiguration.Port == null)
{
connectionInfo = new ConnectionInfo(ftpConfiguration.Host, ftpConfiguration.Username, auths.ToArray());
}
else
{
connectionInfo = new ConnectionInfo(ftpConfiguration.Host, ftpConfiguration.Port.Value, ftpConfiguration.Username, auths.ToArray());
}
_sftpClient = new SftpClient(connectionInfo);
}