Why Is My Selenium WebDriver Failing to Start Chrome, and How Can I Fix It?

Resolving Selenium "WebDriverException: Chrome Failed to Start" with Latest Chrome and ChromeDriver

When attempting to launch Chrome with Selenium, users may encounter the following error:

selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: crashed
(unknown error: DevToolsActivePort file doesn't exist)
(The process started from chrome location /opt/google/chrome/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)

This issue can arise after switching computers or even without noticeable changes. To address this, try the following solutions:

Solution 1: Update ChromeDriver to the Latest Version

Visit the official ChromeDriver download page (https://sites.google.com/chromium.org/driver/) and install the most recent version compatible with your operating system.

Solution 2: Use Headless Chrome

Add the following arguments to your Selenium Chrome options:

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

chrome_options = Options()
chrome_options.add_argument('--headless')
chrome_options.add_argument('--no-sandbox')
chrome_options.add_argument('--disable-dev-shm-usage')
d = webdriver.Chrome('/home/<user>/chromedriver',chrome_options=chrome_options)
d.get('https://www.google.nl/')

Solution 3: Check Chrome Installation

Ensure that Google Chrome is correctly installed on your system. You can check this by typing "google-chrome --version" in your terminal. If Chrome is installed, you should see its version number.

By implementing these solutions, you can successfully launch Chrome with Selenium and resolve the "WebDriverException: Chrome failed to start" error.

The above is the detailed content of Why Is My Selenium WebDriver Failing to Start Chrome, and How Can I Fix It?. For more information, please follow other related articles on the PHP Chinese website!