/ accounts / register /站点匹配查询中的NotExotExist不存在。 （django，python）

Question

再次尝试实现django-registration。当我尝试将其部署到heroku并注册一个新用户时，它给了我一个奇怪的错误：

Traceback:

#some irrelevant traceback

File "/app/.heroku/python/lib/python2.7/site-packages/registration/views.py" in post
  43.             return self.form_valid(request, form)

File "/app/.heroku/python/lib/python2.7/site-packages/registration/views.py" in form_valid
  91.         new_user = self.register(request, form)

File "/app/.heroku/python/lib/python2.7/site-packages/registration/backends/default/views.py" in register
  86.         site = get_current_site(request)

File "/app/.heroku/python/lib/python2.7/site-packages/django/contrib/sites/shortcuts.py" in get_current_site
  15.         return Site.objects.get_current(request)

File "/app/.heroku/python/lib/python2.7/site-packages/django/contrib/sites/models.py" in get_current
  67.             return self._get_site_by_request(request)

File "/app/.heroku/python/lib/python2.7/site-packages/django/contrib/sites/models.py" in _get_site_by_request
  44.                 SITE_CACHE[host] = self.get(domain__iexact=host)

File "/app/.heroku/python/lib/python2.7/site-packages/django/db/models/manager.py" in manager_method
  122.                 return getattr(self.get_queryset(), name)(*args, **kwargs)

File "/app/.heroku/python/lib/python2.7/site-packages/django/db/models/query.py" in get
  387.                 self.model._meta.object_name

Exception Type: DoesNotExist at /accounts/register/
Exception Value: Site matching query does not exist.

我完全遵循官方documentation。

应该在哪里寻找错误？问题在哪里？

Answer 1

如果您的django.contrib.sites中有INSTALLED_APPS而且您没有多个网站，那么您已将其删除并进行了一轮makemigration和migrate。

如果您有多个网站，请参考：Django - Site matching query does not exist

Answer 2

从this添加。这应该起作用

输入Django shell

$> ./manage.py shell
>>> from django.contrib.sites.models import Site
>>> site = Site()
>>> site.domain = 'example.com'
>>> site.name = 'example.com'
>>> site.save()