No application found. Either work inside a view function or push an application context. 해결

https://flask-sqlalchemy.palletsprojects.com/en/2.x/contexts/

Introduction into Contexts — Flask-SQLAlchemy Documentation (2.x)

 

>>> from yourapp import create_app
>>> app = create_app()
>>> app.app_context().push()

>>> from yourapp import db, create_app
>>> db.create_all(app=create_app())

순서대로 입력해준다음 sqlalchemy작업을 수행하면 성공적으로 실행되는 것을 볼수있다 ㅠㅠ