?: (urls.w005) Url Namespace 'main' Isn't Unique. You May Not Be Able To Reverse All Urls In This Namespace

I'm getting this error when running python manage.py runserver ?: (urls.W005) URL namespace 'main' isn't unique. You may not be able to reverse all URLs in this namespace mysit

Solution 1:

path('', include('main.urls')) means that all of the url patterns from main will be included without any additional prefix.

path('asdf/', include('main.urls')) would mean that all of the url patterns from main will be included with additional asdf/ prefix, so root index url would become asdf/ and about/ would become asdf/about/ (in your case - about/about/).

If you'd have 100500 url patterns in main.urls you'd still need to include them only once.