无法使用mysql db在rails中启动服务器

在终端窗口中使用rails s或rails服务器时，我得到以下消息。 我在应用程序根目录中。 有任何想法吗？

/Users/paul/.rvm/gems/ruby-2.0.0-p247/gems/mysql2-0.3.13/lib/mysql2.rb:8:in `require': dlopen(/Users/paul/.rvm/gems/ruby-2.0.0-p247/gems/mysql2-0.3.13/lib/mysql2/mysql2.bundle, 9): Library not loaded: libmysqlclient.18.dylib (LoadError) Referenced from: /Users/paul/.rvm/gems/ruby-2.0.0-p247/gems/mysql2- 0.3.13/lib/mysql2/mysql2.bundle Reason: image not found - /Users/paul/.rvm/gems/ruby-2.0.0-p247/gems/mysql2-0.3.13/lib/mysql2/mysql2.bundle from /Users/paul/.rvm/gems/ruby-2.0.0-p247/gems/mysql2-0.3.13/lib/mysql2.rb:8:in `' from /Users/paul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require' from /Users/paul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require' from /Users/paul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each' from /Users/paul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require' from /Users/paul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each' from /Users/paul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require' from /Users/paul/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler.rb:132:in `require' from /Users/paul/Documents/Ruby/simple_cms/config/application.rb:7:in `' from /Users/paul/.rvm/gems/ruby-2.0.0-p247@global/gems/railties-4.0.0/lib/rails/commands.rb:76:in `require' from /Users/paul/.rvm/gems/ruby-2.0.0-p247@global/gems/railties-4.0.0/lib/rails/commands.rb:76:in `block in ' from /Users/paul/.rvm/gems/ruby-2.0.0-p247@global/gems/railties-4.0.0/lib/rails/commands.rb:73:in `tap' from /Users/paul/.rvm/gems/ruby-2.0.0-p247@global/gems/railties-4.0.0/lib/rails/commands.rb:73:in `' from bin/rails:4:in `require' from bin/rails:4:in `' 

Answer 1

现在修复此问题，添加：

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