Error Log

selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: exited abnormally   (unknown error: DevToolsActivePort file doesn't exist)   (The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
request = <FixtureRequest for <Function 'test_user_fails_to_view_group_after_leaving_it[1oz_1op_deployed]'>>

    @pytest.mark.usefixtures(*function_args)
    def scenario_wrapper(request):
>       _execute_scenario(feature, scenario, request, encoding)

/usr/local/lib/python3.6/dist-packages/pytest_bdd/scenario.py:227: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
/usr/local/lib/python3.6/dist-packages/pytest_bdd/scenario.py:189: in _execute_scenario
    _execute_step_function(request, scenario, step, step_func)
/usr/local/lib/python3.6/dist-packages/pytest_bdd/scenario.py:130: in _execute_step_function
    step_func(**kwargs)
/usr/local/lib/python3.6/dist-packages/pytest_bdd/steps.py:162: in step_func
    result = request.getfixturevalue(func.__name__)
/usr/local/lib/python3.6/dist-packages/_pytest/fixtures.py:428: in getfixturevalue
    return self._get_active_fixturedef(argname).cached_result[0]
/usr/local/lib/python3.6/dist-packages/_pytest/fixtures.py:453: in _get_active_fixturedef
    self._compute_fixture_value(fixturedef)
/usr/local/lib/python3.6/dist-packages/_pytest/fixtures.py:524: in _compute_fixture_value
    fixturedef.execute(request=subrequest)
/usr/local/lib/python3.6/dist-packages/_pytest/fixtures.py:795: in execute
    return hook.pytest_fixture_setup(fixturedef=self, request=request)
/usr/local/lib/python3.6/dist-packages/pluggy/__init__.py:617: in __call__
    return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
/usr/local/lib/python3.6/dist-packages/pluggy/__init__.py:222: in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
/usr/local/lib/python3.6/dist-packages/pluggy/__init__.py:216: in <lambda>
    firstresult=hook.spec_opts.get('firstresult'),
/usr/local/lib/python3.6/dist-packages/_pytest/fixtures.py:826: in pytest_fixture_setup
    result = call_fixture_func(fixturefunc, request, kwargs)
/usr/local/lib/python3.6/dist-packages/_pytest/fixtures.py:718: in call_fixture_func
    res = fixturefunc(**kwargs)
tests/gui/steps/common/browser_creation.py:71: in create_instances_of_webdriver
    browser = driver(driver_kwargs)
/usr/local/lib/python3.6/dist-packages/pytest_selenium/pytest_selenium.py:98: in <lambda>
    return lambda kwargs=driver_kwargs: cls(**kwargs)
/usr/local/lib/python3.6/dist-packages/selenium/webdriver/chrome/webdriver.py:75: in __init__
    desired_capabilities=desired_capabilities)
/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py:156: in __init__
    self.start_session(capabilities, browser_profile)
/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py:251: in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py:320: in execute
    self.error_handler.check_response(response)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <selenium.webdriver.remote.errorhandler.ErrorHandler object at 0x7f409b6de2b0>
response = {'status': 500, 'value': '{"value":{"error":"unknown error","message":"unknown error: Chrome failed to start: exited a...running, so ChromeDriver is assuming that Chrome has crashed.)","stacktrace":"#0 0x56056aadd7e9 \\u003Cunknown>\\n"}}'}

    def check_response(self, response):
        """
            Checks that a JSON response from the WebDriver does not have an error.
    
            :Args:
             - response - The JSON response from the WebDriver server as a dictionary
               object.
    
            :Raises: If the response contains an error message.
            """
        status = response.get('status', None)
        if status is None or status == ErrorCode.SUCCESS:
            return
        value = None
        message = response.get("message", "")
        screen = response.get("screen", "")
        stacktrace = None
        if isinstance(status, int):
            value_json = response.get('value', None)
            if value_json and isinstance(value_json, basestring):
                import json
                try:
                    value = json.loads(value_json)
                    if len(value.keys()) == 1:
                        value = value['value']
                    status = value.get('error', None)
                    if status is None:
                        status = value["status"]
                        message = value["value"]
                        if not isinstance(message, basestring):
                            value = message
                            message = message.get('message')
                    else:
                        message = value.get('message', None)
                except ValueError:
                    pass
    
        exception_class = ErrorInResponseException
        if status in ErrorCode.NO_SUCH_ELEMENT:
            exception_class = NoSuchElementException
        elif status in ErrorCode.NO_SUCH_FRAME:
            exception_class = NoSuchFrameException
        elif status in ErrorCode.NO_SUCH_WINDOW:
            exception_class = NoSuchWindowException
        elif status in ErrorCode.STALE_ELEMENT_REFERENCE:
            exception_class = StaleElementReferenceException
        elif status in ErrorCode.ELEMENT_NOT_VISIBLE:
            exception_class = ElementNotVisibleException
        elif status in ErrorCode.INVALID_ELEMENT_STATE:
            exception_class = InvalidElementStateException
        elif status in ErrorCode.INVALID_SELECTOR \
                or status in ErrorCode.INVALID_XPATH_SELECTOR \
                or status in ErrorCode.INVALID_XPATH_SELECTOR_RETURN_TYPER:
            exception_class = InvalidSelectorException
        elif status in ErrorCode.ELEMENT_IS_NOT_SELECTABLE:
            exception_class = ElementNotSelectableException
        elif status in ErrorCode.ELEMENT_NOT_INTERACTABLE:
            exception_class = ElementNotInteractableException
        elif status in ErrorCode.INVALID_COOKIE_DOMAIN:
            exception_class = InvalidCookieDomainException
        elif status in ErrorCode.UNABLE_TO_SET_COOKIE:
            exception_class = UnableToSetCookieException
        elif status in ErrorCode.TIMEOUT:
            exception_class = TimeoutException
        elif status in ErrorCode.SCRIPT_TIMEOUT:
            exception_class = TimeoutException
        elif status in ErrorCode.UNKNOWN_ERROR:
            exception_class = WebDriverException
        elif status in ErrorCode.UNEXPECTED_ALERT_OPEN:
            exception_class = UnexpectedAlertPresentException
        elif status in ErrorCode.NO_ALERT_OPEN:
            exception_class = NoAlertPresentException
        elif status in ErrorCode.IME_NOT_AVAILABLE:
            exception_class = ImeNotAvailableException
        elif status in ErrorCode.IME_ENGINE_ACTIVATION_FAILED:
            exception_class = ImeActivationFailedException
        elif status in ErrorCode.MOVE_TARGET_OUT_OF_BOUNDS:
            exception_class = MoveTargetOutOfBoundsException
        elif status in ErrorCode.JAVASCRIPT_ERROR:
            exception_class = JavascriptException
        elif status in ErrorCode.SESSION_NOT_CREATED:
            exception_class = SessionNotCreatedException
        elif status in ErrorCode.INVALID_ARGUMENT:
            exception_class = InvalidArgumentException
        elif status in ErrorCode.NO_SUCH_COOKIE:
            exception_class = NoSuchCookieException
        elif status in ErrorCode.UNABLE_TO_CAPTURE_SCREEN:
            exception_class = ScreenshotException
        elif status in ErrorCode.ELEMENT_CLICK_INTERCEPTED:
            exception_class = ElementClickInterceptedException
        elif status in ErrorCode.INSECURE_CERTIFICATE:
            exception_class = InsecureCertificateException
        elif status in ErrorCode.INVALID_COORDINATES:
            exception_class = InvalidCoordinatesException
        elif status in ErrorCode.INVALID_SESSION_ID:
            exception_class = InvalidSessionIdException
        elif status in ErrorCode.UNKNOWN_METHOD:
            exception_class = UnknownMethodException
        else:
            exception_class = WebDriverException
        if value == '' or value is None:
            value = response['value']
        if isinstance(value, basestring):
            if exception_class == ErrorInResponseException:
                raise exception_class(response, value)
            raise exception_class(value)
        if message == "" and 'message' in value:
            message = value['message']
    
        screen = None
        if 'screen' in value:
            screen = value['screen']
    
        stacktrace = None
        if 'stackTrace' in value and value['stackTrace']:
            stacktrace = []
            try:
                for frame in value['stackTrace']:
                    line = self._value_or_default(frame, 'lineNumber', '')
                    file = self._value_or_default(frame, 'fileName', '<anonymous>')
                    if line:
                        file = "%s:%s" % (file, line)
                    meth = self._value_or_default(frame, 'methodName', '<anonymous>')
                    if 'className' in frame:
                        meth = "%s.%s" % (frame['className'], meth)
                    msg = "    at %s (%s)"
                    msg = msg % (meth, file)
                    stacktrace.append(msg)
            except TypeError:
                pass
        if exception_class == ErrorInResponseException:
            raise exception_class(response, message)
        elif exception_class == UnexpectedAlertPresentException:
            alert_text = None
            if 'data' in value:
                alert_text = value['data'].get('text')
            elif 'alert' in value:
                alert_text = value['alert'].get('text')
            raise exception_class(message, screen, stacktrace, alert_text)
>       raise exception_class(message, screen, stacktrace)
E       selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: exited abnormally
E         (unknown error: DevToolsActivePort file doesn't exist)
E         (The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)

/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/errorhandler.py:242: WebDriverException