Authentication was partially successful, .. authentication with: 'password,keyboard-interactive'.

Hello Support Team,

I have downloaded the current Trail version of SFTP library and tried to run the below code.

Sftp client = new Sftp();
client.Connect(host, 22);
client.Login(username, password);

I get the below error message mentioned in subject line in the last line of the code. I have username and pwd to connect but not private key. Please suggest how should i process further.

thanks