Postgres Error after updating to Latest OS X

Question

Hey guys i recently updated my mac to latest OS X 10.12.3 Previously my rails project was working fine, now whenever i start my rails server i keep getting this error for my project. I've tried a lot of different solution provided here in stackoverflow it simply still not working.

Here are some of it i've tried

Postgres could not connect to server

PostgreSQL error 'Could not connect to server: No such file or directory'

Thanks, please help me

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

i found solution for this. Just download the postgres app

http://postgresapp.com/

Not sure if it will work for everyone, but it worked for me :)

Answer 2

Try starting your postgres server using this command:

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