TypeError: issubclass() arg 1 должен быть классом, strartapp
Я работаю над проектом Django. И когда я пытаюсь использовать python3 manage.py startapp newletters
у меня возникает такая ошибка:
File "/home/evgenia/PycharmProjects/CarDealer/venv/lib/python3.8/site-packages/django/core/management/__init__.py", line 395, in execute
django.setup()
File "/home/evgenia/PycharmProjects/CarDealer/venv/lib/python3.8/site-packages/django/__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "/home/evgenia/PycharmProjects/CarDealer/venv/lib/python3.8/site-packages/django/apps/registry.py", line 91, in populate
app_config = AppConfig.create(entry)
File "/home/evgenia/PycharmProjects/CarDealer/venv/lib/python3.8/site-packages/django/apps/config.py", line 228, in create
if not issubclass(app_config_class, AppConfig):
TypeError: issubclass() arg 1 must be a class