[Django]-Django project looking for "attribute '_session_cache'"

For future Googlers – I ran into this issue and the above solutions did not work for me. What did work for me was clearing/deleting my cookies in Chrome for the 127.0.0.1 URL. So go to Settings or press CMD+, then Cookies and other site data, then find 127.0.0.1 or localhost and delete those cookies. Refresh the local dev host page and the error should be gone. This has something to do with a corrupted session / cookie file.

I’m not sure why I started to get this error, it involved an upgrade though. I just deleted all the sessions and after logging back in all was well.

# from the shell but equivalent sql would work fine too
from django.contrib.sessions.models import Session
Session.objects.all().delete()

Here is what worked for me. Since there is no databases in your application. Admin page looks for the database be it default. So first lets create the default databases.

Shut down your servers and run

python manage.py makemigrations
python manage.py migrate

Now create the admin or superuser for your application. Fill username and password.

python manage.py createsuperuser

Now restart your server and go the admin page

python manage.py runserver

Throwed the same error for me after upgraded my wagtail version… So, for me worked even simpler solution or u didn’t noticed already 😀 Actually I opened the browser > F12 > Storage Tab and Delete all Cookies and all other Cached Data

Users facing this issue via Postman please make sure that the value in the request header for Cache-Control is no-cache.

If not then clear the cookie data for the domain.

In normal case when we use

from django.http import JsonResponse

for sending response we have no need to uses sessions.

But when we use some package such as djangorestframework we force to use sessions.

Sessions need storage place in sqllite,mysql ,…or others
then we need run these commands:

python manage.py makemigrations
python manage.py migrate