using selenium grid for testing

Question

Trying to run the code but getting this error:

Could not start a new session. Possible causes are invalid address of the remote server or browser start-up failure. Build info: version: '3.4.0', revision: 'unknown', time: 'unknown' As i am beginner i don't know whats the exact issue .so please help me.

I am using Windows cmd for creating the hub and node connection.

public class Grid_2 {
    WebDriver driver;
    String baseUrl,nodeURL;
    @BeforeTest
    public void setUp() throws MalformedURLException{
        baseUrl="https://www.google.co.in";
        nodeURL="http://192.168.0.10:5566/wd/hub";
        DesiredCapabilities capability=DesiredCapabilities.firefox();
        capability.setBrowserName("firefox");
        capability.setPlatform(Platform.WIN10);
        driver=new RemoteWebDriver(new URL(nodeURL),capability);
    }
    @AfterTest
        public void afterTest(){
        driver.quit();
    }
    @Test
        public void simpleTest(){
            driver.get(baseUrl);
            Assert.assertEquals("google", driver.getTitle());
    }
        }