啓動Django 報錯celery.exceptions.ImproperlyConfigured: Celery 4.x requires Django 1.11 or later.

File "/root/training/Python-3.7.0/lib/python3.7/site-packages/celery/fixups/django.py", line 34, in _verify_django_version
    raise ImproperlyConfigured('Celery 4.x requires Django 1.11 or later.')
celery.exceptions.ImproperlyConfigured: Celery 4.x requires Django 1.11 or later.

Celery4.0只支持Django版本>=1.8的，如果是小於1.8版本需要使用Celery3.1
我本地Celery3.1.5的，升下就好了

# 更新下
pip install celery==4.0.2