ارور کدها

من کد میزنم این ارورو میده:

Traceback (most recent call last):

 File "<stdin>", line 1, in <module>

 File "C:\Users\n\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 81, in __init__

   desired_capabilities=desired_capabilities)

 File "C:\Users\n\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 157, in __init__

   self.start_session(capabilities, browser_profile)

 File "C:\Users\n\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 252, in start_session

   response = self.execute(Command.NEW_SESSION, parameters)

 File "C:\Users\n\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute

   self.error_handler.check_response(response)

 File "C:\Users\n\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response

   raise exception_class(message, screen, stacktrace)

selenium.common.exceptions.WebDriverException: Message: unknown error: cannot find Chrome binary

......چیکار کنم؟