[Answered ]-Error Migrating Comment Framework Into Django

Try adding django.contrib.sites in your INSTALLED_APPS and set SITE_ID=1 in your settings.py.

It’s shown from the error:

Field defines a relation with model ‘Site’, which is either not installed, or is abstract.

And from the migration file source code:

dependencies = [ ('sites', '0001_initial'), migrations.swappable_dependency(settings.AUTH_USER_MODEL), ('contenttypes', '0001_initial'), ]

It suggested that django.contrib.sites is indeed a dependency app.

Edited:

In fact, this is included from the docs Quick start guide:

Enable the “sites” framework by adding ‘django.contrib.sites’ to INSTALLED_APPS
and defining SITE_ID.