问使用Selenium Webdriver的Chome中的UnReachableBrowserException

EN

public static void main(String[] args) {
    // declaration and instantiation of objects/variables

    System.setProperty("webdriver.chrome.driver", "C://Program Files (x86)//Google//Chrome//Application//chrome.exe");
    WebDriver driver= new ChromeDriver();


    String baseURL = "http://newtours.demoaut.com";
    String expectedTitle = "Welcome: Mercury Tours";
    String actualTitle = "";

    // launch Firefox and direct it to the Base URL
    driver.get(baseURL);
    // get the actual value of the title
    actualTitle = driver.getTitle();

    /*
     * compare the actual title of the page witht the expected one and print
     * the result as "Passed" or "Failed"
     */
    if (actualTitle.contentEquals(expectedTitle)){
        System.out.println("Test Passed!");
    } else {
        System.out.println("Test Failed");
    }

    //close Firefox
    driver.close();

    // exit the program explicitly
    System.exit(0);
}