Question

我是RoR的新手，我似乎无法获得WEBrick并且正在倾听。这是控制台输出。我使用Mountain Lion，Rails 3.2.8和Ruby 1.9.3。请帮忙

/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

答案就在这里：

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

rails + MySQL on OSX: Library not loaded: libmysqlclient.18.dylib

---已编辑

您的$ DYLD_LIBRARY_PATH不包含/ usr / local / mysql / lib目录，因此有2个解决方案

符号链接
将/ usr / local / mysql / lib添加到.bashrc或某处的$ DYLD_LIBRARY_PATH

Answer 2

不知道这个答案是否有用......但本周我遇到了同样的问题。

当我搜索到答案时，我发现有帮助的那个只是将宝石'瘦'放在Gemfile中。

（当然，这依赖于已经安装了薄宝石）

然后运行bundle install。（这会安装薄宝石）。

当你运行rails服务器时，它会自动使用瘦身。

希望这有帮助！

编辑：将捆绑包更改为捆绑安装

编辑2：添加了关于瘦宝石的句子

Answer 3

看起来你的mysql2 gem没有正确安装。看看这个问题的答案。它应该可以帮助你进行设置。你需要先安装mysql（我喜欢用自制软件来做这个）。然后使用正确的路径安装gem。

Ruby gem mysql2 install failing

WEBrick不使用rails server命令

3 个答案: