sockets - Heroku postgres 连接 : "Is the server running locally and accepting connections on Unix domain socket"

Question

我正在设置一个新的开发环境，按照 django 设置教程进行操作，但遇到了问题。这是我尝试运行 syncdb 时得到的结果

Running `python doccal/manage.py syncdb` attached to terminal... up, run.1
Traceback (most recent call last):
  File "doccal/manage.py", line 14, in <module>
    execute_manager(settings)
  File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/__i
nit__.py", line 459, in execute_manager
    utility.execute()
  File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/__i
nit__.py", line 382, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/bas
e.py", line 196, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/bas
e.py", line 232, in execute
    output = self.handle(*args, **options)
  File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/bas
e.py", line 371, in handle
    return self.handle_noargs(**options)
  File "/app/.heroku/venv/lib/python2.7/site-packages/django/core/management/com
mands/syncdb.py", line 57, in handle_noargs
    cursor = connection.cursor()
  File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/backends/__init_
_.py", line 306, in cursor
    cursor = self.make_debug_cursor(self._cursor())
  File "/app/.heroku/venv/lib/python2.7/site-packages/django/db/backends/postgre
sql_psycopg2/base.py", line 177, in _cursor
    self.connection = Database.connect(**conn_params)
  File "/app/.heroku/venv/lib/python2.7/site-packages/psycopg2/__init__.py", lin
e 179, in connect
    connection_factory=connection_factory, async=async)
psycopg2.OperationalError: could not connect to server: No such file or director
y
        Is the server running locally and accepting
        connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?

在使用相同的步骤之前，我已经设置了同一个项目，并且从未遇到过问题。几周前，我确实收到一封电子邮件，说 Heroku 正在从共享数据库中迁移出来，我认为这与某种方式有关。

此外，我确实注意到教程中有两个新步骤，即安装 dj-database-url 并将这些行添加到 settings.py

import dj_database_url
DATABASES = {'default': dj_database_url.config(default='postgres://localhost')}

无论是否使用这些行，我都尝试过运行它，但无论如何都会遇到同样的问题。

另一篇帖子建议修复方法是这样做

heroku addons:add shared-database

尝试过，收到一条消息，指出共享数据库已弃用并使用 heroku-postgresql，但这没有效果。

感谢您的帮助

Answer 1

将主机配置为本地主机，如:

'HOST': 'localhost',