크롬드라이버 작동 후 꺼짐

셀레니움 모듈 설치 후 윈도우 c드라이버(C:/dev_python/Webdriver/chromedriver) 폴더에

크롬드라이버까지는 설치를 했고 아래 소스코드를 실행시키면 크롬 창이 열리긴 합니다. 

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from selenium import webdriver

from selenium.webdriver.common.keys import Keys

chromedriver = 'C:/dev_python/Webdriver/chromedriver'

driver = webdriver.Chrome(chromedriver)

==============================================

문제는 열린 후에 저절로 종료가 되며 아래와 같은 에러 메시지가 뜨는데요..

---------------------------------------------------------------------------
WebDriverException                        Traceback (most recent call last)
<ipython-input-22-3fda3c2e7dab> in <module>
      3 
      4 chromedriver = 'C:/dev_python/Webdriver/chromedriver'
----> 5 driver = webdriver.Chrome(chromedriver)

~\anaconda3\lib\site-packages\selenium\webdriver\chrome\webdriver.py in __init__(self, executable_path, port, options, service_args, desired_capabilities, service_log_path, chrome_options, keep_alive)
     74 
     75         try:
---> 76             RemoteWebDriver.__init__(
     77                 self,
     78                 command_executor=ChromeRemoteConnection(

~\anaconda3\lib\site-packages\selenium\webdriver\remote\webdriver.py 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)

~\anaconda3\lib\site-packages\selenium\webdriver\remote\webdriver.py 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']

~\anaconda3\lib\site-packages\selenium\webdriver\remote\webdriver.py 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))

~\anaconda3\lib\site-packages\selenium\webdriver\remote\errorhandler.py 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: unable to discover open pages
  (Driver info: chromedriver=2.0,platform=Windows NT 6.2 x86_64)

에러의 원인이 무엇일까요?

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

options = Options()
options.add_argument('--no-sandbox') # Bypass OS security model
driver = webdriver.Chrome(chrome_options=options, executable_path=r'C:\path\to\chromedriver.exe')
driver.get('http://www.python.org')
print(driver.title)
driver.quit()