Python 为什么要获取django.core.exceptions.AppRegistryNotReady：应用程序不是'；我还没上膛。创建CustomUser和CustomUserManager时

我正在尝试运行django应用程序，但遇到了标题中提到的错误。django 3.2.3和Python 3.9.5在我的项目中使用。我在尝试运行以下任何命令时遇到此错误：-

python manage.py makemigrationspython 

manage.py migratepython 

python manage.py runserver

setting.py:-

"""
Django settings for ecommerceproject project.

Generated by 'django-admin startproject' using Django 3.2.3.

For more information on this file, see
https://docs.djangoproject.com/en/3.2/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.2/ref/settings/
"""

from pathlib import Path
import os


# Build paths inside the project like this: BASE_DIR / 'subdir'.
import loginsignup.models

BASE_DIR = Path(__file__).resolve().parent.parent

# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.2/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'django-insecure-mw$%fa@7r-g_1*w(d$!bd*si_d3sxrx#c@8i&&(h*@&!(oz#%l'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []

# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'products',
    'loginsignup',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'ecommerceproject.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'ecommerceproject.wsgi.application'

# Database
# https://docs.djangoproject.com/en/3.2/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}

# Password validation
# https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]

# Internationalization
# https://docs.djangoproject.com/en/3.2/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.2/howto/static-files/

STATIC_URL = '/static/'
MEDIA_ROOT = BASE_DIR / 'media'



# Default primary key field type
# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
AUTH_USER_MODEL = loginsignup.models.CustomUsers

Traceback (most recent call last):
  File "C:\Users\Admin\PycharmProjects\ecommerceproject\manage.py", line 22, in <module>
    main()
  File "C:\Users\Admin\PycharmProjects\ecommerceproject\manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\management\__init__.py", line 419, in execute_from_command_line
    utility.execute()
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\management\__init__.py", line 363, in execute
    settings.INSTALLED_APPS
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\conf\__init__.py", line 82, in __getattr__
    self._setup(name)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\conf\__init__.py", line 69, in _setup
    self._wrapped = Settings(settings_module)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\conf\__init__.py", line 170, in __init__
    mod = importlib.import_module(self.SETTINGS_MODULE)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 855, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "C:\Users\Admin\PycharmProjects\ecommerceproject\ecommerceproject\settings.py", line 17, in <module>
    import loginsignup.models
  File "C:\Users\Admin\PycharmProjects\ecommerceproject\loginsignup\models.py", line 1, in <module>
    from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\models.py", line 3, in <module>
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\base_user.py", line 48, in <module>
    class AbstractBaseUser(models.Model):
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\base.py", line 108, in __new__
    app_config = apps.get_containing_app_config(module)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\apps\registry.py", line 253, in get_containing_app_config
    self.check_apps_ready()
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\apps\registry.py", line 136, in check_apps_ready
    raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.

完全错误：-

"""
Django settings for ecommerceproject project.

Generated by 'django-admin startproject' using Django 3.2.3.

For more information on this file, see
https://docs.djangoproject.com/en/3.2/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.2/ref/settings/
"""

from pathlib import Path
import os


# Build paths inside the project like this: BASE_DIR / 'subdir'.
import loginsignup.models

BASE_DIR = Path(__file__).resolve().parent.parent

# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.2/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'django-insecure-mw$%fa@7r-g_1*w(d$!bd*si_d3sxrx#c@8i&&(h*@&!(oz#%l'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []

# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'products',
    'loginsignup',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'ecommerceproject.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'ecommerceproject.wsgi.application'

# Database
# https://docs.djangoproject.com/en/3.2/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}

# Password validation
# https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]

# Internationalization
# https://docs.djangoproject.com/en/3.2/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.2/howto/static-files/

STATIC_URL = '/static/'
MEDIA_ROOT = BASE_DIR / 'media'



# Default primary key field type
# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
AUTH_USER_MODEL = loginsignup.models.CustomUsers

Traceback (most recent call last):
  File "C:\Users\Admin\PycharmProjects\ecommerceproject\manage.py", line 22, in <module>
    main()
  File "C:\Users\Admin\PycharmProjects\ecommerceproject\manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\management\__init__.py", line 419, in execute_from_command_line
    utility.execute()
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\management\__init__.py", line 363, in execute
    settings.INSTALLED_APPS
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\conf\__init__.py", line 82, in __getattr__
    self._setup(name)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\conf\__init__.py", line 69, in _setup
    self._wrapped = Settings(settings_module)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\conf\__init__.py", line 170, in __init__
    mod = importlib.import_module(self.SETTINGS_MODULE)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 855, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "C:\Users\Admin\PycharmProjects\ecommerceproject\ecommerceproject\settings.py", line 17, in <module>
    import loginsignup.models
  File "C:\Users\Admin\PycharmProjects\ecommerceproject\loginsignup\models.py", line 1, in <module>
    from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\models.py", line 3, in <module>
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\base_user.py", line 48, in <module>
    class AbstractBaseUser(models.Model):
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\db\models\base.py", line 108, in __new__
    app_config = apps.get_containing_app_config(module)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\apps\registry.py", line 253, in get_containing_app_config
    self.check_apps_ready()
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site-packages\django\apps\registry.py", line 136, in check_apps_ready
    raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.

回溯（最近一次呼叫最后一次）：
文件“C:\Users\Admin\PycharmProjects\ecommerceproject\manage.py”，第22行，在
main（）
文件“C:\Users\Admin\PycharmProjects\ecommerceproject\manage.py”，主目录第18行
从命令行（sys.argv）执行命令
文件“C:\Users\Admin\AppData\Local\Programs\Python\39\lib\site packages\django\core\management\ \uuuuuuuuu init\uuuuuuuuu.py”，第419行，从命令行执行
utility.execute（）
文件“C:\Users\Admin\AppData\Local\Programs\Python\39\lib\site packages\django\core\management\\uuuu init\uuuu.py”，第363行，在execute中
settings.INSTALLED\u应用程序
文件“C:\Users\Admin\AppData\Local\Programs\Python\39\lib\site packages\django\conf\\uuuuuu init\uuuuuuu.py”，第82行，位于\uuuu getattr中__
自我设置（名称）
文件“C:\Users\Admin\AppData\Local\Programs\Python\39\lib\site packages\django\conf\\ uuu init\uu.py”，第69行，在安装程序中
自包装=设置（设置模块）
文件“C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\site packages\django\conf\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\__
mod=importlib.import\u模块（自我设置\u模块）
文件“C:\Users\Admin\AppData\Local\Programs\Python\39\lib\importlib\\ uuuuuu init\uuuuuu.py”，第127行，在导入模块中
return _bootstrap._gcd_import（名称[级别：]，包，级别）
文件“”，第1030行，在_gcd_import中
文件“”，第1007行，在“查找”和“加载”中
文件“”，第986行，在“查找”和“加载”中解锁
文件“”，第680行，在\u加载\u解锁
exec_模块中第855行的文件“”
文件“”，第228行，在调用中删除了帧
文件“C:\Users\Admin\PycharmProjects\ecommerceproject\ecommerceproject\settings.py”，第17行，在
导入loginsignup.models
文件“C:\Users\Admin\PycharmProjects\ecommerceproject\loginsignup\models.py”，第1行，在
从django.contrib.auth.models导入AbstractBaseUser、PermissionsMixin
文件“C:\Users\Admin\AppData\Local\Programs\Python\39\lib\site packages\django\contrib\auth\models.py”，第3行，在
从django.contrib.auth.base_user导入AbstractBaseUser、BaseUserManager
文件“C:\Users\Admin\AppData\Local\Programs\Python\39\lib\site packages\django\contrib\auth\base\u user.py”，第48行，在
类AbstractBaseUser（models.Model）：
文件“C:\Users\Admin\AppData\Local\Programs\Python\39\lib\site packages\django\db\models\base.py”，第108行，在新的__
app\u config=apps.get\u包含app\u config（模块）
文件“C:\Users\Admin\AppData\Local\Programs\Python\39\lib\site packages\django\apps\registry.py”，第253行，在包含应用程序配置的get_中
self.check_apps_ready（）
文件“C:\Users\Admin\AppData\Local\Programs\Python\39\lib\site packages\django\apps\registry.py”，第136行，在check\u apps\u ready中
raise AppRegistryNotReady（“应用程序尚未加载。”）
django.core.exceptions.AppRegistryNotReady:尚未加载应用程序。

运行django管理检查后，我出现以下错误：-

Traceback (most recent call last):
  File "c:\users\admin\appdata\local\programs\python\python39\lib\runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "c:\users\admin\appdata\local\programs\python\python39\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\Scripts\django-admin.exe\__main__.py", line 7, in <module>
  File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\__init__.py", line 419, in execute_from_command_line
    utility.execute()
  File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\__init__.py", line 413, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\base.py", line 354, in run_from_argv
    self.execute(*args, **cmd_options)
  File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\base.py", line 398, in execute
    output = self.handle(*args, **options)
  File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\commands\check.py", line 63, in handle
    self.check(
  File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\management\base.py", line 419, in check
    all_issues = checks.run_checks(
  File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\checks\registry.py", line 76, in run_checks
    new_errors = check(app_configs=app_configs, databases=databases)
  File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\core\checks\model_checks.py", line 18, in check_all_models
    models = apps.get_models()
  File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\apps\registry.py", line 179, in get_models
    self.check_models_ready()
  File "c:\users\admin\appdata\local\programs\python\python39\lib\site-packages\django\apps\registry.py", line 141, in check_models_ready
    raise AppRegistryNotReady("Models aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet.

回溯（最近一次呼叫最后一次）：
文件“c:\users\admin\appdata\local\programs\python\python39\lib\runpy.py”，第197行，位于\u run\u模块\u as\u main中
返回运行代码（代码、主全局、无、，
文件“c:\users\admin\appdata\local\programs\python\39\lib\runpy.py”，第87行，在运行代码中
exec（代码、运行\全局）
文件“C:\Users\Admin\AppData\Local\Programs\Python39\Scripts\django Admin.exe\ \uuuuu main\uuuuuu.py”，第7行，在
文件“c:\users\admin\appdata\local\programs\python\39\lib\site packages\django\core\management\ \uuuuuuuuu init\uuuuuuuuu.py”，第419行，从命令行执行
utility.execute（）
文件“c:\users\admin\appdata\local\programs\python\39\lib\site packages\django\core\management\\uuuu init\uuu.py”，第413行，在execute中
self.fetch_命令（子命令）。从_argv（self.argv）运行_
文件“c:\users\admin\appdata\local\programs\python\39\lib\site packages\django\core\management\base.py”，第354行，运行于\u argv
self.execute（*args，**cmd_选项）
文件“c:\users\admin\appdata\local\programs\python\39\lib\site packages\django\core\management\base.py”，第398行，在execute中
输出=self.handle（*args，**选项）
文件“c:\users\admin\appdata\local\programs\python\39\lib\site packages\django\core\management\commands\check.py”，第63行，在handle中
自我检查(
文件“c:\users\admin\appdata\local\programs\python\39\lib\site packages\django\core\management\base.py”，第419行，处于检查状态
所有问题=检查。运行检查(
运行检查中第76行的文件“c:\users\admin\appdata\local\programs\python\39\lib\site packages\django\core\checks\registry.py”
新建错误=检查（应用程序配置=应用程序配置，数据库=数据库）
文件“c:\users\admin\appdata\local\programs\python\39\lib\site packages\django\core\checks\model\u checks.py”，第18行，在check\u all\u models中
模型=应用程序。获取_模型（）
get\U模型中的文件“c:\users\admin\appdata\local\programs\python39\lib\site packages\django\apps\registry.py”，第179行
self.check_models_ready（）
文件“c:\users\admin\appdata\local\programs\python\39\lib\site packages\django\apps\registry.py”，第141行，在check\u models\u ready中
raise AppRegistryNotReady（“尚未加载模型”）
django.core.exceptions.AppRegistryNotReady:尚未加载模型。

---

非常感谢您的帮助。

您需要为您的用户模型设置正确的python路径，但不要引用它自己的模型类对象。Django需要首先正确初始化。 改变

AUTH\u USER\u MODEL=loginsignup.models.CustomUsers

到

AUTH\u USER\u MODEL=“loginsignup.models.CustomUsers”

并删除

impo