我尝试从我的django应用程序连接到heroku postgres数据库时，在启动时遇到上述错误。这是我的Mac运行El Cap，10.11.5 - 似乎从我的笔记本电脑上工作正常，幸好还在运行Yosemite。我尝试升级所有东西 - python 2.7.11，最新的psycopg2和最新的Django。也许我需要咬紧牙关去蟒蛇3？它与heroku pg：psql连接得很好！这是整个堆栈。谢谢！
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/utils/autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 117, in inner_run
self.check_migrations()
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 163, in check_migrations
executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/db/migrations/executor.py", line 20, in __init__
self.loader = MigrationLoader(self.connection)
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/db/migrations/loader.py", line 49, in __init__
self.build_graph()
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/db/migrations/loader.py", line 176, in build_graph
self.applied_migrations = recorder.applied_migrations()
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/db/migrations/recorder.py", line 65, in applied_migrations
self.ensure_schema()
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/db/migrations/recorder.py", line 52, in ensure_schema
if self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor()):
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/db/backends/base/base.py", line 231, in cursor
cursor = self.make_debug_cursor(self._cursor())
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/db/backends/base/base.py", line 204, in _cursor
self.ensure_connection()
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/db/backends/base/base.py", line 199, in ensure_connection
self.connect()
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/db/utils.py", line 95, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/db/backends/base/base.py", line 199, in ensure_connection
self.connect()
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/db/backends/base/base.py", line 171, in connect
self.connection = self.get_new_connection(conn_params)
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/django/db/backends/postgresql/base.py", line 175, in get_new_connection
connection = Database.connect(**conn_params)
File "/Users/da/dev/pwapp/venv/lib/python2.7/site-packages/psycopg2/__init__.py", line 164, in connect
conn = _connect(dsn, connection_factory=connection_factory, async=async)
django.db.utils.OperationalError: FATAL: no pg_hba.conf entry for host "[ip]", user "", database "[yadda]", SSL off