Getting exception with grid WebDriverException The path to the driver executable must be set

Question

I'm trying to set up a Grid with tests running on my ChromeDriver.

So I started my the hub and node using this command: java -jar selenium-server-standalone-2.45.0.jar -role hub java -jar selenium-server-standalone-2.45.0.jar -role node -hub http://localhost:4444/grid/register

And below is my code where I feel there is some issue: 

public class ChromeDriverTest 
{
    private WebDriver driver = null;
    String  BaseURL,NodeURL;

@Before
public void before() throws Exception
{
    BaseURL="http://www.google.com";
    NodeURL="http://localhost:4444/wd/hub";
    File file = new File("C:\\Users\\pushkaryova\\Desktop\\chromedriver.exe");
    System.setProperty("webdriver.chrome.driver", file.getAbsolutePath());
    DesiredCapabilities capa =DesiredCapabilities.chrome();
    capa.setBrowserName("chrome");
    capa.setPlatform(Platform.ANY);
    driver=new RemoteWebDriver(new URL(NodeURL),capa);
}

@Test
public void GoogleSearch() throws Exception 
{
    driver.get("http://www.google.com");
    WebElement searchBox = driver.findElement(By.xpath("//div[3]/div/input[1]"));
    hightlight(searchBox);
    driver.findElement(By.xpath("//div[3]/div/input[1]")).clear();
    driver.findElement(By.xpath("//div[3]/div/input[1]")).sendKeys("Test");
    driver.findElement(By.xpath("//button")).click();
}

public void hightlight(WebElement webElement) throws InterruptedException 
{
    for (int i = 0; i < 2; i++) 
    {
        JavascriptExecutor js = (JavascriptExecutor) driver;
        js.executeScript(
                "arguments[0].setAttribute('style', arguments[1]);",
                webElement, "color: red; border: 3px solid red;");
    }
}
}

The error that I get is this:

org.openqa.selenium.WebDriverException: The path to the driver executable must be set by the webdriver.chrome.driver system property

So, where is this problem? I'v set the driver path correctly!

Answer 1

You should start the hub and node separately, even if your executing from the same machine. And while starting them, set the path to executable.
If your hub and node is in the same machine, then open a new cmd prompt and execute the command for starting node separately.
For starting the hub, use this command: 

java -jar selenium-server-standalone-3.4.0.jar -role hub

For starting the nodes, use this: 

java -Dwebdriver.chrome.driver=E:\chromedriver.exe -jar selenium-server-standalone-3.4.0.jar -role node -hub http://192.168.0.11:4444/grid/register

Now when you try to execute your code, there shouldn't be any problem, i'm sure.