?: (admin.W411) 'django.template.context_processors.request' must be enabled in DjangoTemplates (TEMPLATES) in order to use the admin navigation sidebar.

1. Open your Django project's settings.py file.

2. Locate the TEMPLATES setting in the settings.py file.

3. Inside the TEMPLATES setting, find the 'context_processors' option within the 'OPTIONS' configuration.

4. Ensure that 'django.template.context_processors.request' is included in the list of context processors. If it's not present, add it to the list.

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.request',  # Ensure this line is present
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

1. Save the changes to the settings.py file.

2. Restart your Django development server for the changes to take effect.