Error on Tutorial 2nd page: mysite/settings.py | Code is incorrect

[Johnson Deng]

In the Database portion of the tutorial: ​https://docs.djangoproject.com/en/4.1/intro/tutorial02/#activating-models, The included code to copy produces an error.
"polls.apps.PollsConfig" at the top of the list does not work and returns and error. But when "polls.apps.PollsConfig" is moved to the bottom of the list, the makemigration polls command works as intended.

Correct code for users to copy:

INSTALLED_APPS = [
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
    **'polls.apps.PollsConfig'**
]

Incorrect Code to copy:

INSTALLED_APPS = [
 **'polls.apps.PollsConfig'**
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
]

[Tim Graham]

What's the error? I think it's more likely that you made a mistake somewhere. In this ticket description, there's no comma after 'polls.apps.PollsConfig' like there should be, so maybe that's it.