调试报错 raise RuntimeError(unbound_message) from None RuntimeError: Working outsi

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db.create_all()
Traceback (most recent call last):
, t% u; y0 w0 T0 }; i' J  File "F:\Program Files\JetBrains\PyCharm Community Edition 2023.2.1\plugins\python-ce\helpers\pydev\pydevconsole.py", line 364, in runcode
; y8 M, h/ r  A. n0 ^" e* E- O4 ^    coro = func()
           ^^^^^^
  File "<input>", line 1, in <module>
  File "G:\Users\longrui\AppData\Local\Programs\Python\Python311\Lib\site-packages\flask_sqlalchemy\extension.py", line 900, in create_all
$ n; _+ }* x6 M$ F+ M' C' H8 L    self._call_for_binds(bind_key, "create_all")
  File "G:\Users\longrui\AppData\Local\Programs\Python\Python311\Lib\site-packages\flask_sqlalchemy\extension.py", line 871, in _call_for_binds
    engine = self.engines[key]
             ^^^^^^^^^^^^
  File "G:\Users\longrui\AppData\Local\Programs\Python\Python311\Lib\site-packages\flask_sqlalchemy\extension.py", line 687, in engines
    app = current_app._get_current_object()  # type: ignore[attr-defined]
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
6 S- S5 f' P* b. T; s. ~4 U  File "G:\Users\longrui\AppData\Local\Programs\Python\Python311\Lib\site-packages\werkzeug\local.py", line 519, in _get_current_object
( K+ k, K: p: `4 j' V% d6 F: a    raise RuntimeError(unbound_message) from None
RuntimeError: Working outside of application context.
This typically means that you attempted to use functionality that needed
. R) X6 x5 P7 f6 b) w- z: h/ ?9 zthe current application. To solve this, set up an application context
4 \6 P5 q) v, _0 ?( t. jwith app.app_context(). See the documentation for more information.