django错误-You have 18 unapplied migration(s). Your project may not work properly until you apply the

django错误-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.

错误截图

我在设置用户名称密码时发生此错误

python manage.py createsuperuser

解决方法：

执行一下这个：python manage.py migrate

它可以让我们在修改Model后可以在不影响现有数据的前提下重建表结构。

之后执行命令就没有错误了