python3 manage.py runserver运行错误解决办法

Performing system checks…

django.core.exceptions.ImproperlyConfigured: The included URLconf ‘’ does not appear to have any patterns in it. If you see valid patterns in the file then the issue is probably caused by a circular import.

from django.conf.urls import url, include
from django.contrib import admin
urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^you/',include('you.urls')),
]

发现当引入include就会出现运行错误，

   # url(r'^you/',include('you.urls')),

将其注释掉又能成功运行。

问题解决办法：

	这是因为，在您的应用中没有书写urls代码及视图函数，把它们写上就ok了。
	如：

子应用下urls.py：

		from django.conf.urls import url, include
		from you import views

		urlpatterns = [
    		url(r'^index/',views.index),
		]

子应用视图iews.py:

from django.shortcuts import render

# Create your views here.
def index(request):
    return render(request,'index.html')

再去运行你就发现，自己有多傻了！希望对你有帮助，毕竟我也犯了这么傻的错误