ruby on rails mac x os狮子运行服务器LoadError
当我在终端上键入rails服务器时，出现以下错误。 我不知道如何解决它。 有人可以帮我吗？ 我还需要一个Ruby on Rails的Mac OS X Lion安装教程。
:simple_cms benhuayang$ rails server /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0/gems/mysql2-0.3.11/lib/mysql2.rb:9:in `require': dlopen(/Users/benhuayang/.rvm/gems/ruby-1.9.3-p0/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle, 9): Library not loaded: libmysqlclient.18.dylib (LoadError) Referenced from: /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle Reason: image not found - /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle from /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0/gems/mysql2-0.3.11/lib/mysql2.rb:9:in `<top (required)>' from /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `require' from /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `block (2 levels) in require' from /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `each' from /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `block in require' from /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `each' from /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `require' from /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0@global/gems/bundler-1.0.21/lib/bundler.rb:122:in `require' from /Users/benhuayang/Sites/simple_cms/config/application.rb:7:in `<top (required)>' from /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.1/lib/rails/commands.rb:53:in `require' from /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.1/lib/rails/commands.rb:53:in `block in ' from /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.1/lib/rails/commands.rb:50:in `tap' from /Users/benhuayang/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.1/lib/rails/commands.rb:50:in `<top (required)>' from script/rails:6:in `require' from script/rails:6:in `<main>'
这是mysql的路径
/Users/benhuayang/.rvm/gems/ruby-1.9.3-p0/bin:/Users/benhuayang/.rvm/gems/ruby-1.9.3-p0@global/bin:/Users/benhuayang/.rvm/rubies/ruby-1.9.3-p0/bin:/Users/benhuayang/.rvm/bin:/opt/local/bin:/opt/local/sbin:/usr/local/mysql/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin
当我遇到这个问题时，我已经使用了以下解决方案。
在终端中运行：
export DYLD_LIBRARY_PATH="$DYLD_LIBRARY_PATH:/usr/local/mysql/lib"
然后尝试在您的应用的根目录中运行您的rails server命令。 如果可行，只需将相同的命令放入〜/ .profile文件中，以便每次进入终端时都能运行。
Ryan的解决方案适用于我在运行rake db后出现以下错误：migrate，我认为它会帮助Google搜索。
rake aborted!
dlopen(/Users/[USERNAME]/.rvm/gems/ruby-1.9.3-p286/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle, 9): Library not loaded: libmysqlclient.18.dylib
Referenced from: /Users/[USERNAME]/.rvm/gems/ruby-1.9.3-p286/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle
Reason: image not found - /Users/[USERNAME]/.rvm/gems/ruby-1.9.3-p286/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle
(See full trace by running task with --trace)