Can't login with node-steam, what's wrong?

Question

Steam

I did everything as described here https://github.com/seishun/node-steam , installed via npm, created an app.js folder in the directory where I installed it, wrote the code as in the example:

var Steam = require('steam');
var steamClient = new Steam.SteamClient();
var steamUser = new Steam.SteamUser(steamClient);
steamClient.connect();
steamClient.on('connected', function() {
  steamUser.logOn({
    account_name: 'username', //ввел свой логин
    password: 'password' //ввел свой пароль
  });
});
steamClient.on('logOnResponse', function(logonResp) {
  if (logonResp.eresult == Steam.EResult.OK) {
    console.log('Logged in!');
    steamFriends.setPersonaState(Steam.EPersonaState.Online); // to display your bot's status as "Online"
  }
});

But it gives me this error, what am I doing wrong...