Selenium grid with Chrome driver (WebDriverException: The path to the driver executable must be set by the webdriver.chrome.driver system property)

问题

I am trying to get my Selenium Grid running on Chrome driver.

At first I started hub and node: 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

than I launch my test:

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\\Nexus\\driver\\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;");
    }
}

}

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

What is wrong in my code?

回答1:

The driver executable needs to be avaiable physically on node machine. You can set the path to exe while starting the node

Add this line in the command

-Dwebdriver.chrome.driver=./chromedriver.exe

I configure this from json file and found that's little easier

json file with name DefaultNode.json

{
  "capabilities":
      [
        {
          "browserName": "firefox",
          "maxInstances": 5,
          "seleniumProtocol": "WebDriver"
        },
        {
          "browserName": "chrome",
          "maxInstances": 5,
          "seleniumProtocol": "WebDriver"
        },
        {
          "platform": "WINDOWS",
          "browserName": "internet explorer",
          "maxInstances": 1,
          "seleniumProtocol": "WebDriver"
        }
      ],
  "configuration":
  {
    "proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
    "maxSession": 5,
    "port": 5555,
    "host": ip,
    "register": true,
    "registerCycle": 5000,
    "hubPort": 4444,
    "hubHost": ip
  }
}

To start the node with json config

java -jar selenium-server-standalone-2.45.0.jar -role webdriver -nodeConfig DefaultNode.json -Dwebdriver.ie.driver=.\IEDriverServer.exe

Notice the IEDriverServer.exe is placed in same directory with json file

回答2:

This works for me in 3.3.1 and above

java -Dwebdriver.chrome.driver="C:\chromedriver.exe" -jar selenium-server-standalone-2.45.0.jar -role node -hub localhost:4444/grid/register -browser "browserName=chrome,version=ANY,platform=WINDOWS,maxInstances=20" -maxSession 20

Webdriver path should be placed before the -jar options

回答3:

You can start your node as:

java -jar selenium-server-standalone-2.45.0.jar -role node -hub localhost:4444/grid/register -browser "browserName=chrome,version=ANY,platform=WINDOWS,maxInstances=20" -Dwebdriver.chrome.driver="C:\chromedriver.exe" -maxSession 20

回答4:

You can set the path to the folder containing the chromedriver executable in your System variables (for Windows).

That got rid of the error for me.

回答5:

I could run chrome and firefox remotely using selenium grid when I added both properties in json config file like this way here: notice the last two lines

{
  "capabilities":
  [
    {
      "browserName": "firefox",
      "marionette": true,
      "maxInstances": 5,
      "seleniumProtocol": "WebDriver"
    },
    {
      "browserName": "chrome",
      "maxInstances": 5,
      "seleniumProtocol": "WebDriver"
    },
    {
      "browserName": "internet explorer",
      "platform": "WINDOWS",
      "maxInstances": 1,
      "seleniumProtocol": "WebDriver"
    },
    {
      "browserName": "safari",
      "technologyPreview": false,
      "platform": "MAC",
      "maxInstances": 1,
      "seleniumProtocol": "WebDriver"
    }
  ],
  "proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
  "maxSession": 5,
  "port": -1,
  "register": true,
  "registerCycle": 5000,
  "hub": "http://192.168.1.2:4444",
  "nodeStatusCheckTimeout": 5000,
  "nodePolling": 5000,
  "role": "node",
  "unregisterIfStillDownAfter": 60000,
  "downPollingLimit": 2,
  "debug": false,
  "servlets" : [],
  "withoutServlets": [],
  "custom": {},
  "webdriver.gecko.driver":"c:/drivers/geckodriver.exe",
  "webdriver.chrome.driver":"c:/drivers/chromedriver.exe"
}

来源：https://stackoverflow.com/questions/29013534/selenium-grid-with-chrome-driver-webdriverexception-the-path-to-the-driver-exe