Django admin add related object doesn't open popup window?

Question

The django-admin app is supposed to open a popup window when I try to create a related object. For example, clicking the green plus button here:

Should brin

Answer 1

I wasn't able to produce a minimal example of what was going on, but it is fixed now. Essentially, I did the following:

1. Upgraded to Django 1.8.6 .
2. Ran python manage.py collectstatic (as suggested in https://community.webfaction.com/questions/18544/there-is-not-popup-window-for-one-to-many-relationship-with-djangos-admin-v18)

So in the end I'm not sure what the issue was. I hope this is useful to someone else.

If someone else comes up with a more complete answer, which involves a minimal example and with an explanation of what was going on, I'll be glad to change the accepter answer.