php 셀레니움을 설치 해보려 하는데 오류 아닌 오류가 발생 하여 고수님들의 도움을 얻고자 합니다!

설치는 https://github.com/php-webdriver/php-webdriver 여기를 참고 했고

이게 샘플로 주는 소스인데 이대로 적용을 하였습니다.

// This is where Selenium server 2/3 listens by default. For Selenium 4, Chromedriver or Geckodriver, use http://localhost:4444/
$host = 'http://localhost:4444/wd/hub';

$capabilities = DesiredCapabilities::chrome();

$driver = RemoteWebDriver::create($host, $capabilities);

// navigate to Selenium page on Wikipedia
$driver->get('https://en.wikipedia.org/wiki/Selenium_(software)');

// write 'PHP' in the search box
$driver->findElement(WebDriverBy::id('searchInput')) // find search input element
    ->sendKeys('PHP') // fill the search box
    ->submit(); // submit the whole form

// wait until 'PHP' is shown in the page heading element
$driver->wait()->until(
    WebDriverExpectedCondition::elementTextContains(WebDriverBy::id('firstHeading'), 'PHP')
);

// print title of the current page to output
echo "The title is '" . $driver->getTitle() . "'\n";

// print URL of current page to output
echo "The current URL is '" . $driver->getCurrentURL() . "'\n";

// find element of 'History' item in menu
$historyButton = $driver->findElement(
    WebDriverBy::cssSelector('#ca-history a')
);

// read text of the element and print it to output
echo "About to click to button with text: '" . $historyButton->getText() . "'\n";

// click the element to navigate to revision history page
$historyButton->click();

// wait until the target page is loaded
$driver->wait()->until(
    WebDriverExpectedCondition::titleContains('Revision history')
);

// print the title of the current page
echo "The title is '" . $driver->getTitle() . "'\n";

// print the URI of the current page

echo "The current URI is '" . $driver->getCurrentURL() . "'\n";

// delete all cookies
$driver->manage()->deleteAllCookies();

// add new cookie
$cookie = new Cookie('cookie_set_by_selenium', 'cookie_value');
$driver->manage()->addCookie($cookie);

// dump current cookies to output
$cookies = $driver->manage()->getCookies();
print_r($cookies);

// close the browser
$driver->quit();

그런데 저 샘플을 적용시 이런 오류가 발생 하더라구요....;;;;

구글링을 해봐도 안나오고.... 내용을 봤을때에는 localhost 에 문제인거 같은데 이거 경험해 보신분 있나요??