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我使用Lynda.com教程來學習Ruby on Rails。在第6章中，他們將創建一個mysql數據庫，然後將其配置爲Rails。我們創建並配置數據庫之後，教練測試從我們的Rails應用程序紅寶石在軌道上的mysql錯誤消息
rake db:schema:dump
這在Rails應用程序的「DB」文件夾中創建一個schema.rb文件的根用這個命令的連接。
但是，對我來說，我得到這個錯誤訊息，當我跑耙命令
rake aborted!
syntax error on line 18, col 2: ` socket: /tmp/mysql.sock'
Tasks: TOP => db:schema:dump => db:load_config
(See full trace by running task with --trace)
我試圖做--trace檢查錯誤，但它沒有做任何事情。
我的database.yml文件（這裏我們配置了軌數據庫）是一樣的教練，除了他的用途mysql和我說mysql2的適配器屬性
development:
adapter: mysql2
encoding: utf8
reconnect: false
database: simple_cms_development
pool: 5
username: simple_cms
password: secretpassword
socket: /tmp/mysql.sock <<---this is line 18 as referred to in error
不管怎樣，錯誤消息說語法錯誤在第18行，但我的第18行是完全一樣的教師...
任何想法我可以解決這個問題？
更新 - 此命令rake db:schema:dump --trace給了我這個輸出
** Invoke db:schema:dump (first_time)
** Invoke db:load_config (first_time)
** Invoke rails_env (first_time)
** Execute rails_env
** Execute db:load_config
rake aborted!
syntax error on line 18, col 2: ` socket: /tmp/mysql.sock'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/yaml.rb:133:in `load'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/yaml.rb:133:in `load'
/Library/Ruby/Gems/1.8/gems/railties-3.1.0/lib/rails/application/configuration.rb:100:in `database_configuration'
/Library/Ruby/Gems/1.8/gems/activerecord-3.1.0/lib/active_record/railties/databases.rake:6
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/task.rb:205:in `call'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/task.rb:205:in `execute'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/task.rb:200:in `each'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/task.rb:200:in `execute'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/task.rb:158:in `invoke_with_call_chain'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/task.rb:176:in `invoke_prerequisites'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/task.rb:174:in `each'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/task.rb:174:in `invoke_prerequisites'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/task.rb:157:in `invoke_with_call_chain'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/task.rb:144:in `invoke'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:112:in `invoke_task'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:90:in `top_level'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:90:in `each'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:90:in `top_level'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:129:in `standard_exception_handling'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:84:in `top_level'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:62:in `run'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:129:in `standard_exception_handling'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/application.rb:59:in `run'
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/bin/rake:32
/usr/bin/rake:19:in `load'
/usr/bin/rake:19
Tasks: TOP => db:schema:dump => db:load_config
如果您使用Windows，則不需要套接字參數。否則，請嘗試完全刪除該行。 – Candide
你應該嘗試「rake db：schema：dump -trace」來獲得回溯。您還應該嘗試使用mysql（而不是mysql2）gem，以便使用與教師相同的設置運行。 – sosborn
@sosborn我遵循了與教練完全相同的安裝說明。認爲他也有mysql2寶石......反正，我做了回溯，並把它放在OP的更新中。它告訴你什麼？ – Leahcim