python - Django manage.py syncdb错误

Question

您好，我是 Django 的新手，在输入“manage.py syncdb”时，我的命令提示符中一直出现此错误

Traceback (most recent call last):
  File "C:\Users\B3dog\Desktop\MyWebsite\mysite\manage.py", line 10, in <module>

    execute_from_command_line(sys.argv)
  File "C:\Python34\lib\site-packages\django-1.8-py3.4.egg\django\core\managemen
t\__init__.py", line 330, in execute_from_command_line`enter code here`
    utility.execute()
  File "C:\Python34\lib\site-packages\django-1.8-py3.4.egg\django\core\managemen
t\__init__.py", line 304, in execute
    django.setup()
  File "C:\Python34\lib\site-packages\django-1.8-py3.4.egg\django\__init__.py",
line 21, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Python34\lib\site-packages\django-1.8-py3.4.egg\django\apps\registry.
py", line 89, in populate
    "duplicates: %s" % app_config.label)
django.core.exceptions.ImproperlyConfigured: Application labels aren't unique, d
uplicates: admin

我使用的是 python 3.4.1 和 Django 版本 1.8，通过 django.get_version() 找到。我知道 stackoverflow 上有关于此的答案，但我发现的答案都不是最新的。

编辑:我忘记包含我的 settings.py

"""
Django settings for mysite project.

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

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

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
import os
BASE_DIR = os.path.dirname(os.path.dirname(__file__))


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

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'pl=&jot_vf_(5ddtj6!pppl@ot^6@arj6(up76otxwqm3wj3)x'

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

TEMPLATE_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',
    'django.contrib.admin',
)

MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
)

ROOT_URLCONF = 'mysite.urls'

WSGI_APPLICATION = 'mysite.wsgi.application'


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

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

# Internationalization
# https://docs.djangoproject.com/en/dev/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/dev/howto/static-files/

STATIC_URL = '/static/'

Answer 1

INSTALLED_APPS 中有两个 django.contrib.admin 条目。这是固定版本:

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