Postgres更新到最新OS X后出错

Question

嘿，伙计们，我最近将我的mac更新为最新的OS X 10.12.3以前我的rails项目运行良好，现在每当我启动rails服务器时，我的项目都会收到这个错误。我尝试了在stackoverflow中提供的很多不同的解决方案，但它仍然不起作用。

这里有一些我尝试过的

Postgres无法连接到服务器

PostgreSQL错误“无法连接到服务器：没有这样的文件或目录”

谢谢，请帮帮我

PG::ConnectionBad (could not connect to server: No such file or directory
    Is the server running locally and accepting
    connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
):

activerecord (5.0.0.1) lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `initialize'
activerecord (5.0.0.1) lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `new'
activerecord (5.0.0.1) lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `connect'
activerecord (5.0.0.1) lib/active_record/connection_adapters/postgresql_adapter.rb:217:in `initialize'
activerecord (5.0.0.1) lib/active_record/connection_adapters/postgresql_adapter.rb:37:in `new'
activerecord (5.0.0.1) lib/active_record/connection_adapters/postgresql_adapter.rb:37:in `postgresql_connection'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:721:in `new_connection'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:765:in `checkout_new_connection'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:744:in `try_to_checkout_new_connection'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:705:in `acquire_connection'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:501:in `checkout'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:364:in `connection'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:875:in `retrieve_connection'
activerecord (5.0.0.1) lib/active_record/connection_handling.rb:128:in `retrieve_connection'
activerecord (5.0.0.1) lib/active_record/connection_handling.rb:91:in `connection'
activerecord (5.0.0.1) lib/active_record/migration.rb:558:in `connection'
activerecord (5.0.0.1) lib/active_record/migration.rb:545:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/callbacks.rb:38:in `block in call'
activesupport (5.0.0.1) lib/active_support/callbacks.rb:97:in `__run_callbacks__'
activesupport (5.0.0.1) lib/active_support/callbacks.rb:750:in `_run_call_callbacks'
activesupport (5.0.0.1) lib/active_support/callbacks.rb:90:in `run_callbacks'
actionpack (5.0.0.1) lib/action_dispatch/middleware/callbacks.rb:36:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/executor.rb:12:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/remote_ip.rb:79:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/debug_exceptions.rb:49:in `call'
web-console (3.3.1) lib/web_console/middleware.rb:131:in `call_app'
web-console (3.3.1) lib/web_console/middleware.rb:28:in `block in call'
web-console (3.3.1) lib/web_console/middleware.rb:18:in `catch'
web-console (3.3.1) lib/web_console/middleware.rb:18:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
railties (5.0.0.1) lib/rails/rack/logger.rb:36:in `call_app'
railties (5.0.0.1) lib/rails/rack/logger.rb:24:in `block in call'
activesupport (5.0.0.1) lib/active_support/tagged_logging.rb:70:in `block in tagged'
activesupport (5.0.0.1) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (5.0.0.1) lib/active_support/tagged_logging.rb:70:in `tagged'
railties (5.0.0.1) lib/rails/rack/logger.rb:24:in `call'
sprockets-rails (3.2.0) lib/sprockets/rails/quiet_assets.rb:13:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/request_id.rb:24:in `call'
rack (2.0.1) lib/rack/method_override.rb:22:in `call'
rack (2.0.1) lib/rack/runtime.rb:22:in `call'
activesupport (5.0.0.1) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/executor.rb:12:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/static.rb:136:in `call'
rack (2.0.1) lib/rack/sendfile.rb:111:in `call'
railties (5.0.0.1) lib/rails/engine.rb:522:in `call'
rack (2.0.1) lib/rack/handler/webrick.rb:86:in `service'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/2.3.0/webrick/httpserver.rb:140:in `service'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/2.3.0/webrick/httpserver.rb:96:in `run'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/2.3.0/webrick/server.rb:296:in `block in start_thread'
  Rendering /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/diagnostics.html.erb within rescues/layout
  Rendering /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_source.html.erb
  Rendered /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_source.html.erb (5.0ms)
  Rendering /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb
  Rendered /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (1.2ms)
  Rendering /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb
  Rendered /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (0.7ms)
  Rendered /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/diagnostics.html.erb within rescues/layout (98.5ms)
[2017-02-01 15:42:00] ERROR PG::ConnectionBad: could not connect to server: No such file or directory
    Is the server running locally and accepting
    connections on Unix domain socket "/tmp/.s.PGSQL.5432"?

    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `initialize'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `new'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `connect'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:217:in `initialize'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:37:in `new'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:37:in `postgresql_connection'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:721:in `new_connection'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:765:in `checkout_new_connection'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:744:in `try_to_checkout_new_connection'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:705:in `acquire_connection'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:501:in `checkout'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:364:in `connection'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:875:in `retrieve_connection'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_handling.rb:128:in `retrieve_connection'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_handling.rb:91:in `connection'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/query_cache.rb:47:in `block in install_executor_hooks'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:396:in `instance_exec'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:396:in `block in make_lambda'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:169:in `block (2 levels) in halting'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:547:in `block (2 levels) in default_terminator'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:546:in `catch'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:546:in `block in default_terminator'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:170:in `block in halting'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:454:in `block in call'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:454:in `each'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:454:in `call'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:101:in `__run_callbacks__'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:750:in `_run_complete_callbacks'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:90:in `run_callbacks'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/execution_wrapper.rb:107:in `complete!'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/executor.rb:13:in `block in call'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/body_proxy.rb:23:in `close'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/handler/webrick.rb:115:in `service'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/2.3.0/webrick/httpserver.rb:140:in `service'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/2.3.0/webrick/httpserver.rb:96:in `run'
    /Users/leo/.rbenv/versions/2.3.2/lib/ruby/2.3.0/webrick/server.rb:296:in `block in start_thread'

Answer 1

我找到了解决办法。只需下载postgres应用程序

http://postgresapp.com/

不确定它是否适用于所有人，但它适用于我：）

Answer 2

尝试使用以下命令启动您的postgres服务器：

pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start