Selenium UnreachableBrowserException - Eclipse中的“无法启动新会话”

Question

当我尝试通过PhantomJS连接到facebook.com时，我收到此错误。我找不到解决方案。

    import org.openqa.selenium.WebDriver;
    import org.openqa.selenium.phantomjs.PhantomJSDriver;
    import org.openqa.selenium.phantomjs.PhantomJSDriverService;
    import org.openqa.selenium.remote.DesiredCapabilities;

    public class SeleniumDemo {

    public static void main(String[] args) throws Exception {
        // TODO Auto-generated method stub
        DesiredCapabilities caps = new DesiredCapabilities();
        caps.setJavascriptEnabled(true);
        caps.setCapability(PhantomJSDriverService.PHANTOMJS_EXECUTABLE_PATH_PROPERTY, "E:/ProjectTrials/phantomjs-2.1.1-windows/phantomjs-2.1.1-windows/bin/phantomjs.exe");
        System.out.println("c1");
        WebDriver driver = new PhantomJSDriver(caps);
        System.out.println("c2");
        driver.get("https://www.facebook.com");
        System.out.println("c3");
        System.out.println("Page Title:  " + driver.getTitle());
    }

}