WEBrick無法使用Rails Server命令

Question

我是RoR的新手，我似乎無法起身並收聽WEBrick。 這是控制台輸出。 我使用Mountain Lion，Rails 3.2.8和Ruby 1.9.3。 請幫助

/Users/Adham/.rvm/gems/ruby-1.9.3-p194/gems/mysql2-0.3.11/lib/mysql2.rb:9:in `require': dlopen(/Users/Adham/.rvm/gems/ruby-1.9.3-p194/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle, 9): Library not loaded: libmysqlclient.18.dylib (LoadError)
  Referenced from: /Users/Adham/.rvm/gems/ruby-1.9.3-p194/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle
  Reason: image not found - /Users/Adham/.rvm/gems/ruby-1.9.3-p194/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle
    from /Users/Adham/.rvm/gems/ruby-1.9.3-p194/gems/mysql2-0.3.11/lib/mysql2.rb:9:in `<top (required)>'
    from /Users/Adham/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.2.0/lib/bundler/runtime.rb:68:in `require'
    from /Users/Adham/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.2.0/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
    from /Users/Adham/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.2.0/lib/bundler/runtime.rb:66:in `each'
    from /Users/Adham/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.2.0/lib/bundler/runtime.rb:66:in `block in require'
    from /Users/Adham/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.2.0/lib/bundler/runtime.rb:55:in `each'
    from /Users/Adham/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.2.0/lib/bundler/runtime.rb:55:in `require'
    from /Users/Adham/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.2.0/lib/bundler.rb:128:in `require'
    from /Users/Adham/Sites/simple_cms/config/application.rb:7:in `<top (required)>'
    from /Users/Adham/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands.rb:53:in `require'
    from /Users/Adham/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands.rb:53:in `block in <top (required)>'
    from /Users/Adham/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands.rb:50:in `tap'
    from /Users/Adham/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands.rb:50:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

Answer 1

答案在這里：

sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/lib/libmysqlclient.18.dylib

OSX上的rails + MySQL：未加載庫：libmysqlclient.18.dylib

-編輯

您的$ DYLD_LIBRARY_PATH不包含/ usr / local / mysql / lib目錄，因此有兩種解決方案

• 符號鏈接
• 將/ usr / local / mysql / lib添加到.bashrc中的$ DYLD_LIBRARY_PATH或其他位置

Answer 2

不知道這個答案是否有幫助...但是本周我遇到了同樣的問題。

當我在谷歌上尋找答案時，我發現很有幫助的只是將gem'thin'放入Gemfile中。

（當然，這取決於已經安裝了薄的寶石）

然后運行捆綁安裝。 （這將安裝薄寶石）。

當您運行Rails Server時，它將自動與Thin一起使用。

希望這可以幫助！

編輯：將捆綁軟件更改為捆綁軟件安裝

編輯2：增加了關於稀薄寶石的句子

Answer 3

看來您的mysql2 gem沒有正確安裝。 看看這個問題的答案。 它應該可以幫助您進行設置。 您需要先安裝mysql（我喜歡使用自制軟件來執行此操作）。 然后使用正確的路徑安裝gem。

Ruby gem mysql2安裝失敗