Why "no such table: django_session" when trying to use admin? - django

Question

I am pretty sure that database has been created and I have executed python manage.py syncdb properly but still i encounter this error when trying to access http://127.0.0.1:8000/admin/. Here are some details.
Request Method: GET
Request URL: http://127.0.0.1:8000/admin/
Django Version: 1.3.1
Python Version: 2.7.1
Installed Applications:
['django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'blog',
'django.contrib.admin']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware')
Exception Type: DatabaseError at /admin/
Exception Value: no such table: django_session

Answer 1

path to sqlite is usually the problem.
'NAME': 'c:/path/to/sqlite.db'

Answer 2

Make migrations will solve the problem.
Run below commands:
python ./manage.py migrate
python ./manage.py makemigrations

Answer 3

Try this
from os.path import dirname, abspath
ROOT = dirname(abspath(__file__)).replace('\\', '/') + '/'
print "self.__name__: " + __name__
print "self.__file__: " + __file__
print "ROOT: " + ROOT
import django
print "django.__path__: "
print (django.__path__)
# Contact for error messages etc. - dont forget the ',' after the first entry
ADMINS = (('dev', 'dev#example.com'),)
MANAGERS = ADMINS
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': ROOT + 'project.db',
'USER': '', 'PASSWORD': '',
'HOST': '', 'PORT': '',
}
}
and check if you need + '/' + before the database name for your operating system.

Answer 4

SESSION_ENGINE it's using django.contrib.sessions.backends.db by default and that's make you need to :
put django.contrib.sessions in INSTALLED_APPS list variable in settings.py
you must migrate your database
if you don't want to do that, just put SESSION_ENGINE to django.contrib.sessions.backends.cache in your settings.py.
so, in your settings.py like this :
...
SESSION_ENGINE = 'django.contrib.sessions.backends.cache'
...
by the way, as in the documentation say :
'..the simple cache is faster because it disregards persistence.'
you can cek in this link

Answer 5

If you have added/updated table in any models.py file, you might need to migrate the db before running the server.
Run below commands before running 'python manage.py runserver':
python manage.py migrate
python manage.py makemigrations

Answer 6

That happens when you run the server without a database created or the session table inside of it (in case you recently add the admin app to your INSTALLED_APPS). In order to create the database or the table run this command.
python manage.py migrate
In older versions of django is this command
python manage.py syncdb

Answer 7

It prompted you to that error page because your Database wasn't even created, which lead to the absence of the mandatory tables to access the admin page.
Run the following two commands :
python3 manage.py migrate
python3 manage.py makemigrations
Running the first command actually creates your database which holds the necessary starter tables. I had the same problem and this solved 100% for me.
Solution source : #satya 's answer

Answer 8

Executing in the below order works fine:
First
python manage.py migrate
Then
python manage.py runserver.
Since we are applying all migrations before running the server.