Django 列core_event.hometask不存在

在生产服务器上运行Django项目时，出现以下错误：

ProgrammingError at /admin/core/event/

column core_event.hometask does not exist
LINE 1: ..._event"."is_approved", "core_event"."event_type", "core_even...

我该怎么做才能修好它？现在我的模型中没有“hometask”字段：

class Event(models.Model):
    name = models.CharField(max_length=100, null=True)
    author = models.ForeignKey(User, on_delete=models.CASCADE, null=True)
    description = models.TextField(max_length=1000, blank=True, null=True)
    date_start = models.DateTimeField(null=True, blank=True)
    date_finish = models.DateTimeField(null=True, blank=True)

    image = models.ImageField(
        upload_to="event_images/", default='event_images/default.png', blank=True, null=True)
    is_approved = models.BooleanField(null=True)

    TYPE_CHOICES = (
        ('Event', "Мероприятие"),
        ('Lesson', "Урок"),
    )
    event_type = models.CharField(choices=TYPE_CHOICES, max_length=200, default="Мероприятие")
    topics = ArrayField(models.CharField(max_length=200), blank=True, null=True)
    materials = ArrayField(models.URLField(), blank=True, null=True)
    possible_users = models.ManyToManyField("core.User", blank=True, related_name='possible_users')
    actual_users = models.ManyToManyField("core.User", blank=True, related_name='actual_users')
    classes = models.ManyToManyField("core.Class", blank=True, related_name='classes')

---

从您发布的内容来看，该字段似乎以前存在于模型中，但现在不再存在。但是，您的

admin.py

仍然引用了

hometask

的旧字段

因此，请转到

admin.py

，搜索

hometask

，然后将其删除