以我有限的Python编程经验，我在网上搜索了很长时间。但没有用。请帮助或尝试给出一些如何实现这一目标的想法。
错误信息：
Traceback (most recent call last):
File "G:\Flask\Sample\venv\lib\site-packages\tornado\web.py", line 1488, in _execute
result = self.prepare()
File "G:\Flask\Sample\venv\lib\site-packages\tornado\web.py", line 2774, in prepare
self.fallback(self.request)
File "G:\Flask\Sample\venv\lib\site-packages\livereload\server.py", line 89, in __call__
WSGIContainer.environ(request), start_response)
File "G:\Flask\Sample\venv\lib\site-packages\flask\app.py", line 1985, in wsgi_app
response = self.handle_exception(e)
File "G:\Flask\Sample\venv\lib\site-packages\flask\app.py", line 1540, in handle_exception
reraise(exc_type, exc_value, tb)
File "G:\Flask\Sample\venv\lib\site-packages\flask\app.py", line 1982, in wsgi_app
response = self.full_dispatch_request()
File "G:\Flask\Sample\venv\lib\site-packages\flask\app.py", line 1614, in full_dispatch_request
rv = self.handle_user_exception(e)
File "G:\Flask\Sample\venv\lib\site-packages\flask\app.py", line 1517, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "G:\Flask\Sample\venv\lib\site-packages\flask\app.py", line 1612, …