我知道这些问题之前已经回答了，但我不能启动我已经设置的rails服务器。有人在这里发布了完全相同的错误无法启动rails服务器，但我不能让它与答案一起工作。我对这一切都是新手，所以如果能得到帮助，我将非常感激。
/Library/Ruby/Gems/1.8/gems/mysql2-0.2.7/lib/mysql2/mysql2.bundle: dlopen(/Library/Ruby/Gems/1.8/gems/mysql2-0.2.7/lib/mysql2/mysql2.bundle, 9): Library not loaded: /usr/local/mysql/lib/libmysqlclient.16.dylib (LoadError)
Referenced from: /Library/Ruby/Gems/1.8/gems/mysql2-0.2.7/lib/mysql2/mysql2.bundle
Reason: image not found - /Library/Ruby/Gems/1.8/gems/mysql2-0.2.7/lib/mysql2/mysql2.bundle
from /Library/Ruby/Gems/1.8/gems/mysql2-0.2.7/lib/mysql2.rb:8
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.12/lib/bundler/runtime.rb:68:in `require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.12/lib/bundler/runtime.rb:68:in `require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.12/lib/bundler/runtime.rb:66:in `each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.12/lib/bundler/runtime.rb:66:in `require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.12/lib/bundler/runtime.rb:55:in `each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.12/lib/bundler/runtime.rb:55:in `require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.12/lib/bundler.rb:120:in `require'
from /Users/valentin/Sites/simple_cms/config/application.rb:7
from /Library/Ruby/Gems/1.8/gems/railties-3.0.7/lib/rails/commands.rb:28:in `require'
from /Library/Ruby/Gems/1.8/gems/railties-3.0.7/lib/rails/commands.rb:28
from /Library/Ruby/Gems/1.8/gems/railties-3.0.7/lib/rails/commands.rb:27:in `tap'
from /Library/Ruby/Gems/1.8/gems/railties-3.0.7/lib/rails/commands.rb:27
from script/rails:6:in `require'
from script/rails:6
Im运行:mySQL: 5.5.11
rails: 3.0.7
ruby 1.8.7:
宝石:1.7.2
mySQL2: 0.2.7
有人能帮忙吗?谢谢!
其他两个链接都没有和你的相同的问题，这两个问题都是旧的mysql2宝石，没有完整的路径到libmysqlclient.16.dylib在包中，请注意，你的错误有完整的路径，Library not loaded: /usr/local/mysql/lib/libmysqlclient.16.dylib(其他问题没有)。
你的问题是这个库可能不存在，因为在大多数OSX系统中MySQL不会安装在那里。
假设您已经安装了MySQL，您应该有一个名为mysql_config的命令-您希望通过将安装程序指向该文件来安装gem。然后，安装的程序可以使用mysql_config的输出来找到它需要的所有MySQL库的正确位置。
无聊，只想知道答案?
sudo gem install mysql2 -- --with-mysql-config=`which mysql_config`