Django not applying css file 404 error??

Question

Django

I did everything as in the Django documentation, but nothing works

settings
STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(PROJECT_ROOT, "static")
STATICFILES_DIRS = os.path.join(BASE_DIR, 'static')

URL

urlpatterns = [
path('grappelli/', include('grappelli.urls')),
path('admin/', admin.site.urls),
] + static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)

Html
{% load static %}
well and further

where to dig???

Answer 1

If you are on a local computer under Windows, then it is easier to copy the path to the folder

STATIC_URL = '/static/'
STATICFILES_DIRS = [
     os.path.join('C:\PythonProject\name.project\app\static'),
 ]

On the server under nginx and the static configuration in the nginx config.

STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(BASE_DIR, 'static/')

And it's even easier to understand these paths, just print them out with print, these are ordinary variables that will be printed to the console when you run django.