i read the "practical django projects" and i stack on chapter 5. In general i have done exactly as it is in the book. I created a urls dir in coltrane app, I removed the urls.py file and i edited the urls.py in cms to write the include statements for each coltranes' model. But the server returns with an ImproperlyConfigured type error and a message that says "The included urlconf cms.urls doesn't have any patterns in it". i thought that it should search into coltrane.urls so i set the urlconf to this one. But the output still is the same. here is the code.
Can anyone show me why this is happen or give me some good resources or example to understand how it works???