Serve React with Django Server - django

Question

I am following this tutorial in order to serve React through Django server, but I only get a blank page when I access http://localhost:8000/admin, and I get the following errors on Django local server console:
[20/Jun/2020 17:05:08] "GET /admin HTTP/1.1" 200 2217
[20/Jun/2020 17:05:08] "GET /static/css/main.5f361e03.chunk.css HTTP/1.1" 404 1821
[20/Jun/2020 17:05:08] "GET /static/js/main.853c8ab9.chunk.js HTTP/1.1" 404 1815
[20/Jun/2020 17:05:08] "GET /static/js/2.6d20342a.chunk.js HTTP/1.1" 404 1806
[20/Jun/2020 17:05:08] "GET /static/js/2.6d20342a.chunk.js HTTP/1.1" 404 1806
[20/Jun/2020 17:05:08] "GET /static/js/main.853c8ab9.chunk.js HTTP/1.1" 404 1815
I made all, and only, the changes stated in the tutorial.
EDIT
I have managed to make http://localhost:8000/admin work. I just had to add a coma in TEMPLATES:
TEMPLATES = [
{
# ...
'DIRS': [
os.path.join(BASE_DIR, 'build'),
],
# ...
}
]
But I still get the same error with http://localhost:8000/.
Thanks for your help.