调试工具栏破坏了我的网址

Question

我是Django的新手，现在我正在努力建立一个使用它的简单网店。今天我意识到我需要一些调试工具，所以我选择了django-debug-toolbar。我设置它就像它在这里解释的那样 - How do I see the Django debug toolbar?。但是当我将DEBUG设置为True时，我会收到一条消息 -

Page not found (404)
Request Method: GET
Request URL:    http://127.0.0.1:8000/
    Using the URLconf defined in urlconf, Django tried these URL patterns, in this order:
    ^__debug__/m/(.*)$
    ^__debug__/sql_select/$ [name='sql_select']
    ^__debug__/sql_explain/$ [name='sql_explain']
    ^__debug__/sql_profile/$ [name='sql_profile']
    ^__debug__/template_source/$ [name='template_source']
    The current URL, , didn't match any of these.
You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.

这是我的应用程序的urls.py：

from django.conf.urls import patterns, url

urlpatterns = patterns('ecommerce.views',
    url(r'^profile/$', 'profile'),
    url(r'^login/$', 'login_user'),
    url(r'^logout/$', 'logout_user'),
    url(r'^registration/$', 'registration'),
)

据我所知，现在django不是在我的应用程序的urls.py中查找合适的网址，而是在其他地方查找。