cannot find Chrome binary[error in description]

[ankitoct]

Traceback (most recent call last):
File "yt.py", line 26, in
server = botgaurd.server_start()
File "C:\Users\am245\Downloads\Compressed\YouTubeShop-master\YouTubeShop-master\lib\auth.py", line 16, in server_start
self.browser = webdriver.Chrome(executable_path=r"lib\chromedriver.exe")
File "C:\Users\am245\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 81, in init
desired_capabilities=desired_capabilities)
File "C:\Users\am245\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 157, in init
self.start_session(capabilities, browser_profile)
File "C:\Users\am245\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 252, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "C:\Users\am245\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "C:\Users\am245\AppData\Local\Programs\Python\Python37\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