不知道怎么办，求老师给看一下
错误：
Traceback (most recent call last):
File "C:/Users/abc/PycharmProjects/demo1/books/views.py", line 6, in <module>
from books.models import User
File "C:\Users\abc\PycharmProjects\demo1\books\models.py", line 13, in <module>
class User(models.Model):
File "C:\Users\abc\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\models\base.py", line 100, in __new__
app_config = apps.get_containing_app_config(module)
File "C:\Users\abc\AppData\Local\Programs\Python\Python36\lib\site-packages\django\apps\registry.py", line 244, in get_containing_app_config
self.check_apps_ready()
File "C:\Users\abc\AppData\Local\Programs\Python\Python36\lib\site-packages\django\apps\registry.py", line 127, in check_apps_ready
raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.
不知道怎么办，求老师给看一下 错误： Traceback (most recent call last): File "C:/Users/abc/PycharmProjects/demo1/books/views.py", line 6, in <module> from books.models import User File "C:\Users\abc\PycharmProjects\demo1\books\models.py", line 13, in <module> class User(models.Model): File "C:\Users\abc\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\models\base.py", line 100, in __new__ app_config = apps.get_containing_app_config(module) File "C:\Users\abc\AppData\Local\Programs\Python\Python36\lib\site-packages\django\apps\registry.py", line 244, in get_containing_app_config self.check_apps_ready() File "C:\Users\abc\AppData\Local\Programs\Python\Python36\lib\site-packages\django\apps\registry.py", line 127, in check_apps_ready raise AppRegistryNotReady("Apps aren't loaded yet.") django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.