Django: no such table: django_session

One other possible cause can come from using:

./manage.py testserver

And then visiting the admin interface. This won't work because testserver creates a completely separate database in memory. If you want to visit the admin interface you need to use runserver.

This can happen if there are pending session migrations.

You have 17 unapplied migration(s). Your project may not work properly until you apply the migrations for app(s): admin, auth, contenttypes, sessions.

You can use the following command to run the migrations:

python manage.py migrate

This will fix the issue.

It happens may be beacause of undone migrations

• Executes following commands:

python manage.py showmigrations

python manage.py migrate --fake your_app_name zero

python manage.py showmigrations

• IF you are running on local machine, then remove file named 0001.init.py from migrations folder in your app

• Executes following commands:

python manage.py makemigrations

python manage.py migrate

• then run django server:

python manage.py runserver

Maybe you have some unmigrated files.

Run
Python manage.py makemigrations appname
python manage.py migrate appname
python manage.py runserver

But if the error still continue The run python manage.py migrate The run server

Maybe it is not getting the path of db. Just add this to your settings.py:

import os
PROJECT_PATH = os.path.dirname(os.path.abspath(__file__))

#modify your db NAME as below:
'NAME': os.path.join(PROJECT_PATH,'mysite.sqlite3'),

I had the same problem so I ran

heroku run ls

and found that the db.sqlite3 file was missing from the server. In my case, it was because I exempted it by adding it in .gitignore file.

Add 'django.contrib.sessions', line in INSTALLED_APPS

Run below commands from django shell

python manage.py makemigrations  #check for changes
python manage.py migrate #apply changes in DbSQLite
python manage.py syncdb #sync with database

django_session will appear in database with (session_key, session_data , expire_date)

For me, it was that I updated settings.py, ran the migrations, but the systemd process was still using SQLite because I did not reload it. Doing systemctl restart service_name solved the problem.

And it may be a case you are getting this error because you forget to run query python manage.py migrate before creating super user

If you are tired of using makemigrations and migrate but the error is same no such table django_session. Then just have a look to you code somewhere or the other you using session or calling it. Just comment the code where you are using session and then run the command makemigrations and migrate respectively. It 100% solve your issue.The cause of this error is that you deleted your migrations folder and database file that is the reason you are getting this error.Feel free to ask if problem is not solve

This worked for me.

From https://docs.djangoproject.com/en/2.2/topics/http/sessions/

Using database-backed sessions -

If you want to use a database-backed session, you need to add 'django.contrib.sessions' to your INSTALLED_APPS setting.

Once you have configured your installation, run manage.py migrate to install the single database table that stores session data.

Please try the following command when you change on your code

manage.py makemigrations
manage.py migrate

Simply run this commands

python manage.py makemigrations
python manage.py migrate
python manage.py runserver

it's simple just run the following command

python ./manage.py migrate
python ./manage.py makemigrations AppName

I found that's it all about migratinge.

python manage.py makemigrations APPNAME

As the answer ticked brakes when changed to a different virtual host such as windows to linux and vice versa

In my case I only focused on different project and did not migrate the main application.

so first:

manage.py makemigrations
manage.py migrate

and then to the project's:

manage.py makemigrations <my other project name>
manage.py migrate <my other project name>

run the command in the terminal or cmd prompt

python manage.py runserver

and then

python manage.py createsuperuser 

then create superuser by setting username and password then you will be able to see the admin login page.

In my case, the problem happened right after installing "Debug-toolbar" with empty models.py (with no classes), so the exact solution to my case is running those codes:

python manage.py makemigrations
python manage.py migrate
python manage.py runserver

that is what I want to demonstrate for this annoying problem.

Django documentation says "Once you have configured your installation, run manage.py migrate to install the single database table that stores session data."

One possibility that i have come across is if the migration is ran for app first time before running migrations for the new project so just run migrations for the project

python manage.py makemigrations
python manage.py migrate

later you can run if needed

python manage.py makemigrations APPNAME
python manage.py migrate APPNAME

1. I deleted the existing migration files from folder with name 0001_initial.py

2. Then deleted the db.sqlite3 database and ran the below 4 commands and it worked.

    python manage.py makemigrations
    python manage.py migrate
    python manage.py createsuperuser
    python manage.py runserver