django.core.context_processors.request is now django.template.context_processors.request

[liquidmetalrob]

In current Django versions: django.core.context_processors.request is now django.template.context_processors.request

It should also be noted that in order to enable it you need to add it here:

TEMPLATES = [{ ... 'OPTIONS': { 'context_processors': [ 'django.template.context_processors.request', ] }, }]