You have 18 unapplied migration(s). Your project may not work properly until you apply the migrations for ...报错

新建Django项目,使用python manage.py runserver命令运行时,提示

You have 18 unapplied migration(s). Your project may not work properly until you
apply the migrations for app(s): admin, auth, contenttypes, sessions.
Run 'python manage.py migrate' to apply them.错误

最后一行信息提示了运行 python manage.py migrate来应用它们

解决方法: Ctrl + C结束服务,执行这个命令  python manage.py migrate