Django 錯誤“ModuleNotFoundError：沒有名為“ocore”的模塊

Question

Django 新手，剛剛開始按照教程構建一個新項目。

我創建了一個虛擬環境，如下所示：

pip install virtualenv

virtualenv myproject_3_7_3

然后我激活虛擬環境並安裝 Django 如下：

cd myproject_3_7_3

source bin/activate

pip install django

這會成功安裝 Django 版本 3.2.10，然后我激活項目，添加一些文件夾結構並使用以下命令創建應用程序：

django-admin startproject myproject

cd myproject

mkdir apps

mkdir apps/core

python manage.py startapp core apps/core

然后我打開 VSCode，我可以在那里看到項目和所有默認文件夾/文件。

要啟動我運行的應用程序：

python manage.py startapp core apps/core

但是我立即在終端中收到以下錯誤。

Traceback (most recent call last):
  File "/Users/myuser/myproject_3_7_3/lib/python3.7/site-packages/django/apps/config.py", line 244, in create
    app_module = import_module(app_name)
  File "//anaconda3/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 965, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'ocore'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    main()
  File "manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "/Users/myuser/myproject_3_7_3/lib/python3.7/site-packages/django/core/management/__init__.py", line 419, in execute_from_command_line
    utility.execute()
  File "/Users/myuser/myproject_3_7_3/lib/python3.7/site-packages/django/core/management/__init__.py", line 395, in execute
    django.setup()
  File "/Users/myuser/myproject_3_7_3/lib/python3.7/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Users/myuser/myproject_3_7_3/lib/python3.7/site-packages/django/apps/registry.py", line 91, in populate
    app_config = AppConfig.create(entry)
  File "/Users/myuser/myproject_3_7_3/lib/python3.7/site-packages/django/apps/config.py", line 250, in create
    app_config_class.__qualname__,
django.core.exceptions.ImproperlyConfigured: Cannot import 'ocore'. Check that 'apps.core.apps.OcoreConfig.name' is correct.

探索創建的apps.py顯示以下內容：

from django.apps import AppConfig


class OcoreConfig(AppConfig):
    default_auto_field = 'django.db.models.BigAutoField'
    name = 'ocore'

這與教程中給出的apps.py文件不同，所以我最初的想法是這可能是由於版本差異，但是廣泛搜索不會產生關於ocore是什么或這個錯誤意味着什么的信息。

有人能幫我解決這個問題嗎？

Answer 1

拼寫錯誤

我試圖復制你的錯誤。

在創建應用程序時，您錯誤地創建了名稱為“ocore”的應用程序。

但是在 settings.py

INSTALLED_APPS = [
   ...
   apps.core, # This is what you added I presume
   apps.ocore, # this must be done
]

創建的應用程序名稱應與 django 的 settings.py 中的 INSTALLED_APPS 數組相同。

另一件事“startapp”只是為您創建具有所需文件和配置的目錄結構。 它不會運行您必須執行的項目python manage.py runserver