There is a warning in my PyCharm IDE for the import line:
main.py:
from flask_bootstrap import Bootstrap5 app = Flask(__name__) Bootstrap5(app) which says:
Package containing module 'flask_bootstrap' is not listed in the project requirements
But in requirements.txt, I already have Bootstrap-Flask==2.4.1
The import and usage of this library are specified here: https://pypi.org/project/Bootstrap-Flask/
How to resolve this error/warning.