Error retrieving a new session from the selenium server

[blessingoraz]

Hi,

I have this error when I run Nightwatch tests:

Here is how one of the config files looks like:

  src_folders : [ "tests/single" ],

  selenium : {
    "start_process" : false,
    "host" : "hub-cloud.browserstack.com",
    "port" : 80
  },

  test_settings: {
    default: {
      desiredCapabilities: {
        'build': 'nightwatch-browserstack',
        'browserstack.user': process.env.BROWSERSTACK_USERNAME || 'BROWSERSTACK_USERNAME',
        'browserstack.key': process.env.BROWSERSTACK_ACCESS_KEY || 'BROWSERSTACK_ACCESS_KEY',
        'browserstack.debug': true,
        'browser': 'chrome'
      }
    }
  }
};

// Code to copy seleniumhost/port into test settings
for(var i in nightwatch_config.test_settings){
  var config = nightwatch_config.test_settings[i];
  config['selenium_host'] = nightwatch_config.selenium.host;
  config['selenium_port'] = nightwatch_config.selenium.port;
}

module.exports = nightwatch_config;

Can anyone help me out with?