chrome drivers error

[ortholinux]

root:~/osintstalker# python fbstalker1.py
Traceback (most recent call last):
File "fbstalker1.py", line 59, in
driver = webdriver.Chrome(chrome_options=chromeOptions)
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/chrome/webdriver.py", line 61, in init
self.service.start()
File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/common/service.py", line 69, in start
os.path.basename(self.path), self.start_error_message)
selenium.common.exceptions.WebDriverException: Message: 'chromedriver' executable needs to be in PATH. Please see https://sites.google.com/a/chromium.org/chromedriver/home

Exception AttributeError: "'Service' object has no attribute 'process'" in <bound method Service.del of <selenium.webdriver.chrome.service.Service object at 0xb5d4908c>> ignored

i tried to put chromedriver executable in path and every other way but still not working.