How To Fix Selenium "devtoolsactiveport File Doesn't Exist" Exception In Python

When I use both arguments --headless and user-data-dir. Selenium raise selenium.common.exceptions.WebDriverException: Message: unknown error: DevToolsActivePort file doesn't exist

Solution 1:

I solve it by adding an argument --remote-debugging-port=<port>

chromeOptions = webdriver.ChromeOptions() 
chromeOptions.add_experimental_option("prefs", {"profile.managed_default_content_settings.images": 2}) 
chromeOptions.add_argument("--no-sandbox") 
chromeOptions.add_argument("--disable-setuid-sandbox") 

chromeOptions.add_argument("--remote-debugging-port=9222")  # this

chromeOptions.add_argument("--disable-dev-shm-using") 
chromeOptions.add_argument("--disable-extensions") 
chromeOptions.add_argument("--disable-gpu") 
chromeOptions.add_argument("start-maximized") 
chromeOptions.add_argument("disable-infobars")
chromeOptions.add_argument(r"user-data-dir=.\cookies\\test") 

b = webdriver.Chrome(chrome_options=chromeOptions) 
b.get("https://google.com/") 
b.quit()