Django 报错RuntimeError: Model class apps.alarms.models.SendAlarmRecord doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

RuntimeError: Model class apps.alarms.models.SendAlarmRecord doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

项目将所以的APP都放在在apps下，并且在项目的settings.py中添加了相关配置：

from pathlib import Path
import sys
import os

# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent.parent
APP_DIR = os.path.join(BASE_DIR, "apps")
sys.path.insert(0, APP_DIR)

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'rest_framework',
    'apps.alarm.apps.AlarmConfig',
]

在view.py中使用以下两种方式导入包时都报错，

from .models import SendAlarmRecord
from apps.alarm.models import SendAlarmRecord

这个报错的处理是在apps.alarm.apps文件中修改如下：

from django.apps import AppConfig


class AlarmConfig(AppConfig):
    # 改为apps.app名称
    name = 'apps.alarm'