django报错:Model class App.models.User doesn't declare an explicit app_label and isn't in an applicati

运行django时报如下错误:

Model class App.models.User doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS

原因:

应该是在settings文件中没有注册你自己的app模块

如下：

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'App',(应该添加你自己定义的app模块名)
]