请问楼主 在我成功运行python manage.py runserver之后 访问http://127.0.0.1:8000/about为什么
返回如下异常？
网页上的如下：
Exception Type: DoesNotExist at /about/
Exception Value: Classification matching query does not exist.
cmd中的如下：
Django version 1.8.6, using settings 'my_site.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.
[27/Dec/2015 16:24:23] "GET /about/ HTTP/1.1" 500 79680
