mysql2導軌上的Gem錯誤

我想繼續對導軌應用程序進行編程，但是當我嘗試啓動服務器rails s時發生以下錯誤。mysql2導軌上的Gem錯誤

當我有一個全新的目錄（它在那裏使用sqlite3）時，我的導軌安裝似乎工作正常。我也可能已經安裝了一切，Xcode的，自制的，RVM ...

操作系統：OS X，1.8.2

任何想法來解決這個問題？

/Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/mysql2-0.3.11/lib/mysql2/client.rb:44:in `connect': Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) (Mysql2::Error) 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/mysql2-0.3.11/lib/mysql2/client.rb:44:in `initialize' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/mysql2_adapter.rb:16:in `new' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/mysql2_adapter.rb:16:in `mysql2_connection' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_pool.rb:315:in `new_connection' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_pool.rb:325:in `checkout_new_connection' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_pool.rb:247:in `block (2 levels) in checkout' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `loop' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `block in checkout' 
    from /Users/myself/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_pool.rb:239:in `checkout' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_pool.rb:102:in `block in connection' 
    from /Users/myself/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_pool.rb:101:in `connection' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_pool.rb:410:in `retrieve_connection' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_specification.rb:171:in `retrieve_connection' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_specification.rb:145:in `connection' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/model_schema.rb:308:in `clear_cache!' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activerecord-3.2.9/lib/active_record/railtie.rb:97:in `block (2 levels) in <class:Railtie>' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/callbacks.rb:418:in `_run__4072264347074867870__prepare__1617522906049658136__callbacks' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/callbacks.rb:405:in `__run_callback' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/callbacks.rb:385:in `_run_prepare_callbacks' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/callbacks.rb:81:in `run_callbacks' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.9/lib/action_dispatch/middleware/reloader.rb:74:in `prepare!' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.9/lib/action_dispatch/middleware/reloader.rb:48:in `prepare!' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/application/finisher.rb:47:in `block in <module:Finisher>' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/initializable.rb:30:in `instance_exec' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/initializable.rb:30:in `run' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/initializable.rb:55:in `block in run_initializers' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/initializable.rb:54:in `each' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/initializable.rb:54:in `run_initializers' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/application.rb:136:in `initialize!' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/railtie/configurable.rb:30:in `method_missing' 
    from /Users/myself/events/config/environment.rb:5:in `<top (required)>' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/dependencies.rb:251:in `require' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/dependencies.rb:251:in `block in require' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/dependencies.rb:236:in `load_dependency' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.9/lib/active_support/dependencies.rb:251:in `require' 
    from /Users/myself/events/config.ru:4:in `block in <main>' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize' 
    from /Users/myself/events/config.ru:1:in `new' 
    from /Users/myself/events/config.ru:1:in `<main>' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/builder.rb:40:in `eval' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/builder.rb:40:in `parse_file' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/server.rb:200:in `app' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/commands/server.rb:46:in `app' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/server.rb:301:in `wrapped_app' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/server.rb:252:in `start' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/commands/server.rb:70:in `start' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/commands.rb:55:in `block in <top (required)>' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/commands.rb:50:in `tap' 
    from /Users/myself/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/commands.rb:50:in `<top (required)>' 
    from script/rails:6:in `require' 
    from script/rails:6:in `<main>'

來源

2012-12-07 Diolor

在機器上安裝了mysql嗎？如果是這樣，它運行嗎？ –

有幾個問題。我有MySQL 5.1和運行，但有一個錯誤'這個寶石編譯爲5.1.66，但客戶端庫是5.5.28.'我升級到5.5.28，但錯誤仍然存在，當我啓動5.5 MySQL時，我'mysql -u root'我得到一個'ERROR 2002（HY000）：無法通過套接字'/tmp/mysql.sock'連接到本地MySQL服務器（2）' – Diolor

的位置是在OSX上的不同，尋找/private/var/mysql/mysql.sock

您的選項是改變套接字值在database.yml中或在創建/ tmp目錄的符號鏈接/myslq.sock

我更喜歡後者，因爲這是一個常見問題。

來源

2012-12-07 20:02:25 Seth

嗨塞斯，看看我的回覆以上。 – Diolor

事情的位置取決於你如何安裝mysql。另外，既然你已經升級了mysql，你的mysql客戶端可能正在尋找與你的mysql服務器不同的地方。嘗試運行'找到mysql.sock'與服務器運行找到它。或者，您可以嘗試查找my.cnf並在那裏查看。 – Seth

mysql2導軌上的Gem錯誤

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