用RedRails启动Webrick服务器产生问题

用RedRails启动Webrick服务器产生问题

用RedRails启动Webrick服务器产生问题，控制台的报告如下，请问是什么问题？如何才能解决?
=> Booting WEBrick...
C:/ruby/lib/ruby/1.8/yaml.rb:133:in `load': syntax error on line 12, col 2: ` socket: /path/to/your/mysql.sock' (ArgumentError)
from C:/ruby/lib/ruby/1.8/yaml.rb:133:in `load'
from C:/ruby/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb:523:in `database_configuration'
from C:/ruby/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb:228:in `initialize_database'
from C:/ruby/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb:88:in `process'
from C:/ruby/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb:43:in `send'
from C:/ruby/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb:43:in `run'
from ./script/../config/../config/environment.rb:10
from C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
... 12 levels...
from C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
from ./script/server:3
from -e:4:in `load'
from -e:4

照报错信息来看，数据库链接出问题，看一下database config文件。