WEBrick无法使用Rails Server命令

Question

我是RoR的新手，我似乎无法起身并收听WEBrick。 这是控制台输出。 我使用Mountain Lion，Rails 3.2.8和Ruby 1.9.3。 请帮助

/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

答案在这里：

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

OSX上的rails + MySQL：未加载库：libmysqlclient.18.dylib

-编辑

您的$ DYLD_LIBRARY_PATH不包含/ usr / local / mysql / lib目录，因此有两种解决方案

• 符号链接
• 将/ usr / local / mysql / lib添加到.bashrc中的$ DYLD_LIBRARY_PATH或其他位置

Answer 2

不知道这个答案是否有帮助...但是本周我遇到了同样的问题。

当我在谷歌上寻找答案时，我发现很有帮助的只是将gem'thin'放入Gemfile中。

（当然，这取决于已经安装了薄的宝石）

然后运行捆绑安装。 （这将安装薄宝石）。

当您运行Rails Server时，它将自动与Thin一起使用。

希望这可以帮助！

编辑：将捆绑软件更改为捆绑软件安装

编辑2：增加了关于稀薄宝石的句子

Answer 3

看来您的mysql2 gem没有正确安装。 看看这个问题的答案。 它应该可以帮助您进行设置。 您需要先安装mysql（我喜欢使用自制软件来执行此操作）。 然后使用正确的路径安装gem。

Ruby gem mysql2安装失败