报错内容
ERRORS:
?: (admin.E408) 'django.contrib.auth.middleware.AuthenticationMiddleware' must be in MIDDLEWARE in order to use the admin application.
?: (admin.E409) 'django.contrib.messages.middleware.MessageMiddleware' must be in MIDDLEWARE in order to use the admin application.
?: (admin.E410) 'django.contrib.sessions.middleware.SessionMiddleware' must be in MIDDLEWARE in order to use the admin application.
报错图片：
解决办法：
1.将 MIDDLEWARE_CLASSES 改为 MIDDLEWARE
2.将 'django,contrib.auth.middleware.SessionAuthenticationMiddleware', 删除
