python - DoesNotExist 在/accounts/register/站点匹配查询不存在。 ( Django ， python )

Question

再次尝试实现 django 注册。当我尝试将它部署到 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.

我完全按照官方documentation .

应该在哪里寻找错误？问题出在哪里？

Answer 1

如果您的 INSTALLED_APPS 中有 django.contrib.sites 并且您没有多个站点，那么您已删除它并执行一轮 makemigration 和 迁移。

如果您有多个站点，请引用:Django - Site matching query does not exist