Django-admin 錯誤：沒有這樣的表 auth_user

Question

我正在嘗試登錄我的網站管理面板。 但是它總是no such table: auth_user 。

既沒有要應用的遷移，也沒有檢測到要遷移的更改。 我的應用程序中還沒有表單/模型，我剛剛安裝了 Django-admin。

我也嘗試過重新安裝django-admin，但沒有成功。

有什么解決辦法嗎？

Traceback (most recent call last):
  File "manage.py", line 21, in <module>
    main()
  File "manage.py", line 17, in main
    execute_from_command_line(sys.argv)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\management\__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\management\__init__.py", line 395, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\management\base.py", line 328, in run_from_argv
    self.execute(*args, **cmd_options)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\contrib\auth\management\commands\createsuperuser.py", line 79, in execute
    return super().execute(*args, **options)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\management\base.py", line 369, in execute
    output = self.handle(*args, **options)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\contrib\auth\management\commands\createsuperuser.py", line 100, in handle
    default_username = get_default_username()
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\contrib\auth\management\__init__.py", line 140, in get_default_username
    auth_app.User._default_manager.get(username=default_username)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\manager.py", line 82, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\query.py", line 411, in get
    num = len(clone)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\query.py", line 258, in __len__
    self._fetch_all()
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\query.py", line 1261, in _fetch_all
    self._result_cache = list(self._iterable_class(self))
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\query.py", line 57, in __iter__
    results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\sql\compiler.py", line 1151, in execute_sql
    cursor.execute(sql, params)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\utils.py", line 100, in execute
    return super().execute(sql, params)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\utils.py", line 68, in execute
    return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\utils.py", line 77, in _execute_with_wrappers
    return executor(sql, params, many, context)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\utils.py", line 86, in _execute
    return self.cursor.execute(sql, params)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\utils.py", line 90, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\utils.py", line 86, in _execute
    return self.cursor.execute(sql, params)
  File "C:\Users\Jonas\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\sqlite3\base.py", line 396, in execute
    return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: no such table: auth_user

C:\Users\Jonas\Desktop\CFD\CFD>py manage.py makemigrations
No changes detected

C:\Users\Jonas\Desktop\CFD\CFD>py manage.py migrate
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, sessions
Running migrations:
  No migrations to apply.

C:\Users\Jonas\Desktop\CFD\CFD>

設置.py：

# Application definition

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

    # other Apps
    'calculator',

    # adding six because of dependency problem with Django 3
    'six',
]

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',
]

[...]

# Database
# https://docs.djangoproject.com/en/3.0/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}

Answer 1

我設法讓它工作。

1. 從 DATABASES/Name 中刪除db.sqlite3
2. 刪除項目目錄中的 db.sqlite 文件
3. 再次將db.sqlite3添加到 DATABASES/Name
4. 運行$ py manage.py migrate
5. 再次創建超級用戶$ py manage.py createsuperuser
6. 登錄管理面板