Django admin 계정 생성오류 해결법 - Your project may not work properly until you apply the migrations for app(s): admin, auth, contenttypes, sessions.

python manage.py createsuperuser

명령을 통해, 관리자 계정을 생성하려고 하는데, 다음과 같은 오류가 뜬다면?

You have 18 unapplied migration(s). Your project may not work properly until you apply the migrations for app(s): admin, auth, contenttypes, sessions.

Terminal에서 아래를 차례대로 입력하면 된다.

python manage.py makemigrations
python manage.py migrate

끝!