报错RuntimeError: Model class apps.user.models.User doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

运行环境
PyCharm 2017.1
Django 2.0.1
python 3.6.1

使用相对路径引用Models模块
from .models import *
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在同时存在多个apps的情况下，有机会报错

RuntimeError: Model class app_anme.models.Ad doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.
1
解决办法
使用绝对路径引用 以后不能采用点的方式了

from app_name.models import *
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