I am trying to get selenium running with a headless chrome in the following environment:
- OS: Ubuntu 16.04.6
- Chrome: 77.0.3865.90 (Official Build) (64-bit)
- ChromeDriver: 77.0.3865.40
- Selenium server version: 3.141.59, revision: e82be7d358
I've been reading about it at developer.google.com and followed the recommended Running Selenium with Headless Chrome post. I followed the steps in the ipython REPL:
from selenium import webdriver
options = webdriver.ChromeOptions()
options.binary_location = '/usr/local/bin'
options.add_argument('headless')
options.add_argument('window-size=1200x600')
driver = webdriver.Chrome(chrome_options=options)
But this results in the following error:
WebDriverException Traceback (most recent call last)
<ipython-input-6-658404e774ae> in <module>()
----> 1 driver = webdriver.Chrome(chrome_options=options)
/home/user/.local/lib/python2.7/site-packages/selenium/webdriver/chrome/webdriver.pyc in __init__(self, executable_path, port, options, service_args, desired_capabilities, service_log_path, chrome_options, keep_alive)
79 remote_server_addr=self.service.service_url,
80 keep_alive=keep_alive),
---> 81 desired_capabilities=desired_capabilities)
82 except Exception:
83 self.quit()
/home/user/.local/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.pyc in __init__(self, command_executor, desired_capabilities, browser_profile, proxy, keep_alive, file_detector, options)
155 warnings.warn("Please use FirefoxOptions to set browser profile",
156 DeprecationWarning, stacklevel=2)
--> 157 self.start_session(capabilities, browser_profile)
158 self._switch_to = SwitchTo(self)
159 self._mobile = Mobile(self)
/home/user/.local/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.pyc in start_session(self, capabilities, browser_profile)
250 parameters = {"capabilities": w3c_caps,
251 "desiredCapabilities": capabilities}
--> 252 response = self.execute(Command.NEW_SESSION, parameters)
253 if 'sessionId' not in response:
254 response = response['value']
/home/user/.local/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.pyc in execute(self, driver_command, params)
319 response = self.command_executor.execute(driver_command, params)
320 if response:
--> 321 self.error_handler.check_response(response)
322 response['value'] = self._unwrap_value(
323 response.get('value', None))
/home/user/.local/lib/python2.7/site-packages/selenium/webdriver/remote/errorhandler.pyc in check_response(self, response)
240 alert_text = value['alert'].get('text')
241 raise exception_class(message, screen, stacktrace, alert_text)
--> 242 raise exception_class(message, screen, stacktrace)
243
244 def _value_or_default(self, obj, key, default):
WebDriverException: Message: unknown error: Chrome failed to start: exited abnormally
(unknown error: DevToolsActivePort file doesn't exist)
(The process started from chrome location /usr/local/bin is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
I've been looking around and found this answer. I've seen there the 'headless' argument is passed like this: add_argument("--headless"). I've tried to add it with the '--' but with the same exception as result.
In this comment the --no-sandbox argument is recommended as well but adding this argument doesn't change anything in my case neither.
How can I debug and fix this error?
Update based on the answer from Wonka:
I've changed options.add_argument('headless') to options.add_argument('--headless') and options.add_argument('window-size=1200x600') to options.add_argument('--window-size=1200x600') with the same error as above.
Then as recommended I tried to set resolution after driver = webdriver.Chrome(chrome_options=options) but this line already fails.
