You may get the above error message in
—-
from biz.models import Entry, City, Category
class CityAdmin(admin.ModelAdmin): list_display = (‘name’) admin.site.register(City, CityAdmin)
———
to fix,
list_display = (‘name’,)
In admin interface,
the element of list will be displayed.
—————-
e.g.,
from django.contrib import admin from mailer.models import Message
class MessageAdmin(admin.ModelAdmin): list_display = (‘id’, ‘to_address’, ‘subject’, ‘when_added’, ‘priority’)