title: PG::ConnectionBad - could not connect to server: Connection refused
body: <p>Every time I run my rails 4.0 server, I get this output. </p>
  
  <pre><code>Started GET "/" for 127.0.0.1 at 2013-11-06 23:56:36 -0500
  
  PG::ConnectionBad - could not connect to server: Connection refused
  Is the server running on host "localhost" (::1) and accepting
  TCP/IP connections on port 5432?
  could not connect to server: Connection refused
  Is the server running on host "localhost" (127.0.0.1) and accepting
  TCP/IP connections on port 5432?
  could not connect to server: Connection refused
  Is the server running on host "localhost" (fe80::1) and accepting
  TCP/IP connections on port 5432?
  :
   activerecord (4.0.0) lib/active_record/connection_adapters/postgresql_adapter.rb:825:in `connect'
   activerecord (4.0.0) lib/active_record/connection_adapters/postgresql_adapter.rb:542:in `initialize'
   activerecord (4.0.0) lib/active_record/connection_adapters/postgresql_adapter.rb:41:in `postgresql_connection'
   activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:440:in `new_connection'
   activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:450:in `checkout_new_connection'
   activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:421:in `acquire_connection'
   activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:356:in `block in checkout'
   /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/monitor.rb:211:in `mon_synchronize'
   activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:355:in `checkout'
   activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:265:in `block in connection'
   /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/monitor.rb:211:in `mon_synchronize'
   activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:264:in `connection'
   activerecord (4.0.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:546:in `retrieve_connection'
   activerecord (4.0.0) lib/active_record/connection_handling.rb:79:in `retrieve_connection'
   activerecord (4.0.0) lib/active_record/connection_handling.rb:53:in `connection'
   activerecord (4.0.0) lib/active_record/migration.rb:792:in `current_version'
   activerecord (4.0.0) lib/active_record/migration.rb:800:in `needs_migration?'
   activerecord (4.0.0) lib/active_record/migration.rb:379:in `check_pending!'
   activerecord (4.0.0) lib/active_record/migration.rb:366:in `call'
   actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
   activesupport (4.0.0) lib/active_support/callbacks.rb:373:in `_run__1613334440513032208__call__callbacks'
   activesupport (4.0.0) lib/active_support/callbacks.rb:80:in `run_callbacks'
   actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
   actionpack (4.0.0) lib/action_dispatch/middleware/reloader.rb:64:in `call'
   actionpack (4.0.0) lib/action_dispatch/middleware/remote_ip.rb:76:in `call'
   better_errors (0.9.0) lib/better_errors/middleware.rb:84:in `protected_app_call'
   better_errors (0.9.0) lib/better_errors/middleware.rb:79:in `better_errors_call'
   better_errors (0.9.0) lib/better_errors/middleware.rb:56:in `call'
   actionpack (4.0.0) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
   actionpack (4.0.0) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
   railties (4.0.0) lib/rails/rack/logger.rb:38:in `call_app'
   railties (4.0.0) lib/rails/rack/logger.rb:21:in `block in call'
   activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in `block in tagged'
   activesupport (4.0.0) lib/active_support/tagged_logging.rb:25:in `tagged'
   activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in `tagged'
   railties (4.0.0) lib/rails/rack/logger.rb:21:in `call'
   quiet_assets (1.0.2) lib/quiet_assets.rb:18:in `call_with_quiet_assets'
   actionpack (4.0.0) lib/action_dispatch/middleware/request_id.rb:21:in `call'
   rack (1.5.2) lib/rack/methodoverride.rb:21:in `call'
   rack (1.5.2) lib/rack/runtime.rb:17:in `call'
   activesupport (4.0.0) lib/active_support/cache/strategy/local_cache.rb:83:in `call'
   rack (1.5.2) lib/rack/lock.rb:17:in `call'
   actionpack (4.0.0) lib/action_dispatch/middleware/static.rb:64:in `call'
   railties (4.0.0) lib/rails/engine.rb:511:in `call'
   railties (4.0.0) lib/rails/application.rb:97:in `call'
   rack (1.5.2) lib/rack/content_length.rb:14:in `call'
   thin (1.5.1) lib/thin/connection.rb:81:in `block in pre_process'
   thin (1.5.1) lib/thin/connection.rb:79:in `pre_process'
   thin (1.5.1) lib/thin/connection.rb:54:in `process'
   thin (1.5.1) lib/thin/connection.rb:39:in `receive_data'
   eventmachine (1.0.3) lib/eventmachine.rb:187:in `run'
   thin (1.5.1) lib/thin/backends/base.rb:63:in `start'
   thin (1.5.1) lib/thin/server.rb:159:in `start'
   rack (1.5.2) lib/rack/handler/thin.rb:16:in `run'
   rack (1.5.2) lib/rack/server.rb:264:in `start'
   railties (4.0.0) lib/rails/commands/server.rb:84:in `start'
   railties (4.0.0) lib/rails/commands.rb:78:in `block in &lt;top (required)&gt;'
   railties (4.0.0) lib/rails/commands.rb:73:in `&lt;top (required)&gt;'
   bin/rails:4:in `&lt;main&gt;'
  </code></pre>
  
  <p>I'm running Mavericks OS X 10.9 so I don't know if that's the problem. I've tried everything I could but nothing seems to work. I've uninstalled and install both postgres and the pg gem multiple times now. </p>
  
  <p>This is my database.yml file</p>
  
  <pre><code>development:
    adapter: postgresql
    encoding: unicode
    database: metals-directory_development
    pool: 5
    username: 
    password: 
    template: template0
    host: localhost
    port: 5432
  
  test: &amp;test
    adapter: postgresql
    encoding: unicode
    database: metals-directory_test
    pool: 5
    username: 
    password: 
    template: template0
    host: localhost
    port: 5432
  
  staging:
    adapter: postgresql
    encoding: unicode
    database: metals-directory_production
    pool: 5
    username:
    password:
    template: template0
    host: localhost
  
  production:
    adapter: postgresql
    encoding: unicode
    database: metals-directory_production
    pool: 5
    username:
    password:
    template: template0
    host: localhost
  
  cucumber:
    &lt;&lt;: *test
  </code></pre>