【Python django提问】django应用程序部署到Heroku后报错No module named 'XX.urls'

问题遇到的现象和发生背景

在学习《Python编程从入门到实践（第2版）》（第20章 设置应用的样式并部署）时遇到的一些问题
尝试将用django创建的应用程序部署到Heroku后报错No module named 'XX.urls'
（如下图所示）

（Allens_diaries为应用名）

文件目录结构

问题相关代码

settings.py

"""
Django settings for Allens_diary project.

Generated by 'django-admin startproject' using Django 4.0.6.

For more information on this file, see
https://docs.djangoproject.com/en/4.0/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/4.0/ref/settings/
"""

import os

from pathlib import Path

from django.utils.translation import gettext_lazy as _

# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/4.0/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'django-insecure-+cg%^@**c6fo(1ct#96z0$10(5krex1klpcz6*s)n0!s5b$_um'

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

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    # 我的应用程序
    'Allens_diaries',
    'users',

    # 第三方应用程序
    'bootstrap4',

    # 默认添加的应用程序
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

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 = 'Allens_diary.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [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 = 'Allens_diary.wsgi.application'


# Database
# https://docs.djangoproject.com/en/4.0/ref/settings/#databases

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


# Password validation
# https://docs.djangoproject.com/en/4.0/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/4.0/topics/i18n/

LANGUAGES = [
    ('zh-Hans', _('Chinese')),
]

LANGUAGE_CODE = 'zh-Hans'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_TZ = False


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/4.0/howto/static-files/

STATIC_URL = '/static/'
STATICFILES_DIRS=[os.path.join(BASE_DIR,'Allens_diaries/static')]

# Default primary key field type
# https://docs.djangoproject.com/en/4.0/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

# 我的设置
LOGIN_URL = 'users:login'

# Heroku设置
import django_heroku
django_heroku.settings(locals())

问题如上

请各位朋友们指教！

补充

尝试迁移数据库也会有同样的报错

(Allens_diary) D:\Allen's\python_work\program\part_2\chapter_18\Allens_diary>heroku run python manage.py migrate
 »   Warning: heroku update available from 7.53.0 to 7.60.2.
Running python manage.py migrate on ⬢ allens-diary... up, run.2507 (Free)
Traceback (most recent call last):
  File "/app/manage.py", line 22, in <module>
    main()
  File "/app/manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "/app/.heroku/python/lib/python3.9/site-packages/django/core/management/__init__.py", line 446, in execute_from_command_line
    utility.execute()
  File "/app/.heroku/python/lib/python3.9/site-packages/django/core/management/__init__.py", line 440, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/app/.heroku/python/lib/python3.9/site-packages/django/core/management/base.py", line 414, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/app/.heroku/python/lib/python3.9/site-packages/django/core/management/base.py", line 460, in execute
    output = self.handle(*args, **options)
  File "/app/.heroku/python/lib/python3.9/site-packages/django/core/management/base.py", line 98, in wrapped
    res = handle_func(*args, **kwargs)
  File "/app/.heroku/python/lib/python3.9/site-packages/django/core/management/commands/migrate.py", line 91, in handle
    self.check(databases=[database])
  File "/app/.heroku/python/lib/python3.9/site-packages/django/core/management/base.py", line 487, in check
    all_issues = checks.run_checks(
  File "/app/.heroku/python/lib/python3.9/site-packages/django/core/checks/registry.py", line 88, in run_checks
    new_errors = check(app_configs=app_configs, databases=databases)
  File "/app/.heroku/python/lib/python3.9/site-packages/django/core/checks/urls.py", line 14, in check_url_config
    return check_resolver(resolver)
  File "/app/.heroku/python/lib/python3.9/site-packages/django/core/checks/urls.py", line 24, in check_resolver
    return check_method()
  File "/app/.heroku/python/lib/python3.9/site-packages/django/urls/resolvers.py", line 480, in check
    for pattern in self.url_patterns:
  File "/app/.heroku/python/lib/python3.9/site-packages/django/utils/functional.py", line 49, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/app/.heroku/python/lib/python3.9/site-packages/django/urls/resolvers.py", line 696, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "/app/.heroku/python/lib/python3.9/site-packages/django/utils/functional.py", line 49, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/app/.heroku/python/lib/python3.9/site-packages/django/urls/resolvers.py", line 689, in urlconf_module
    return import_module(self.urlconf_name)
  File "/app/.heroku/python/lib/python3.9/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 790, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/app/Allens_diary/urls.py", line 22, in <module>
    path('', include('Allens_diaries.urls')),
  File "/app/.heroku/python/lib/python3.9/site-packages/django/urls/conf.py", line 38, in include
    urlconf_module = import_module(urlconf_module)
  File "/app/.heroku/python/lib/python3.9/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 984, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'Allens_diaries.urls'

麻烦看下Allens_diary/Allens_diary 目录下的urls.py 内容