Django-Grappelli: Reverse for 'grp_related_lookup' with arguments '()' and keyword arguments '{}' not found
You probably forgot to add grappelli urls into your urls.py (at least it was the case for me)
url(r'^grappelli/', include('grappelli.urls')),
You probably forgot to add grappelli urls into your urls.py (at least it was the case for me)
url(r'^grappelli/', include('grappelli.urls')),