当我启动我的应用程序时出现此错误。显然它与 SQLAlchemy 有一些关系。我一直在 Corey Schaffer Flask 教程的帮助下处理这个例子。
> File "C:\Users\Matea\venv\lib\site-packages\flask\app.py", line 2309, in __call__
return self.wsgi_app(environ, start_response)
File "C:\Users\Matea\venv\lib\site-packages\flask\app.py", line 2295, in wsgi_app
response = self.handle_exception(e)
File "C:\Users\Matea\venv\lib\site-packages\flask\app.py", line 1741, in handle_exception
reraise(exc_type, exc_value, tb)
File "C:\Users\Matea\venv\lib\site-packages\flask\_compat.py", line 35, in reraise
raise value
File "C:\Users\Matea\venv\lib\site-packages\flask\app.py", line 2292, in wsgi_app
response = self.full_dispatch_request()
File "C:\Users\Matea\venv\lib\site-packages\flask\app.py", line 1815, in full_dispatch_request
rv = self.handle_user_exception(e)
File "C:\Users\Matea\venv\lib\site-packages\flask\app.py", line 1718, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "C:\Users\Matea\venv\lib\site-packages\flask\_compat.py", line 35, in reraise
raise value
File "C:\Users\Matea\venv\lib\site-packages\flask\app.py", …