[Django]-Django: SocialApp matching query does not exist

For me, it showed this error when I had in settings.py:

SITE_ID = 1

It worked when I changed it to 2:

SITE_ID = 2

In my case, on the Add social application page, I forgot to select my site as "Chosen sites" 🤦🏼‍♂️

See screenshot below (on the bottom right is the Chosen Sites list):

Step 1: Go to your admin page.
Find social application

Step 2: now add the lines like the following image.
Give your client id and secret key given by google api and move available site (example.com) to chosen sites

Step 3: Now go to sites in the side navigation of admin page and customize like the following image and save it

Step 4: now, add, SITE_ID = 1 in settings.py file.

As an alternative to putting that into the admin, you can also put it in your settings like so: (At least in 2022 with version django-allauth==0.45.0

SOCIALACCOUNT_PROVIDERS = {
    'discord': {
        # From https://developer.twitter.com
        'APP': {
            'client_id': os.environ['TWITTER_API_KEY'],
            'secret': os.environ['TWITTER_API_SECRET'],
            'key': os.environ['TWITTER_APP_ID'],
        }
    },
    'twitter': {
        # From https://developer.twitter.com
        'APP': {
            'client_id': os.environ['TWITTER_API_KEY'],
            'secret': os.environ['TWITTER_API_SECRET'],
            'key': os.environ['TWITTER_APP_ID'],
        }
    },
}

Documentation is at: https://django-allauth.readthedocs.io/en/latest/installation.html and https://django-allauth.readthedocs.io/en/latest/configuration.html

It is possible that Django created an ‘example.com’ site for you already (if it’s not a new project). So if this is the case you will need to delete that entry from the Sites admin page AND change the SITE_ID in settings.py to be the correct ID (probably 2 rather than 1).

Consider playing around with the SITE_ID value. For example: SITE_ID = 3, etc.

FWIW, if configuration via the DB is giving you problems, note that you can also use configuration in settings:

SOCIALACCOUNT_PROVIDERS = {
"google": {
    "APP": {
        "client_id": os.environ[("GOOGLE_OAUTH_CLIENT_ID"],
        "secret": os.environ[("GOOGLE_OAUTH_SECRET"],
    },
},
}

@Penners

This worked for me

    SOCIALACCOUNT_PROVIDERS = {
    'google': {
        'SCOPE' : [
            'profile',
            'email'
        ],
        'APP': {
            'client_id': os.environ['CLIENT_ID'],
            'secret': os.environ['CLIENT_SECRET'],
        },
        'AUTH_PARAMS': {
            'access_type':'online',
        }
    }
}