Я пытаюсь запустить проект, он работал вчера, но теперь он показывает.
(flaskenv) pravin@pravin-Aspire-A315-31:~/PycharmProjects/flask_crud_apis_Fix$ flask run
* Serving Flask app "api.py"
* Environment: production
WARNING: This is a development server. Do not use it in a production deployment.
Use a production WSGI server instead.
* Debug mode: off
/home/pravin/Desktop/flaskenv/lib/python3.6/site-packages/flask_sqlalchemy/__init__.py:794: FSADeprecationWarning: SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and will be disabled by default in the future. Set it to True or False to suppress this warning.
'SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and '
usage: flask [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
or: flask --help [cmd1 cmd2 ...]
or: flask --help-commands
or: flask cmd --help
error: invalid command 'run'
Я использовал виртуальную среду и раньше тоже использовал.