当我在我的目标文件夹里启动 rails server 时，开始疯狂报错。google 上也有人遇到这个问题，但暂时找不到解决办法。。求助啊

D:\lab4\mytwitter>rails server
=> Booting WEBrick
=> Rails 4.0.0 application starting in development on http://0.0.0.0:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/act
ive_support/dependencies.rb:222:in `load': D:/lab4/mytwitter/config/routes.rb:59
: syntax error, unexpected keyword_end, expecting end-of-input (SyntaxError)
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-
4.0.0/lib/active_support/dependencies.rb:222:in `block in load'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-
4.0.0/lib/active_support/dependencies.rb:213:in `load_dependency'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-
4.0.0/lib/active_support/dependencies.rb:222:in `load'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/application/routes_reloader.rb:40:in `block in load_paths'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/application/routes_reloader.rb:40:in `each'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/application/routes_reloader.rb:40:in `load_paths'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/application/routes_reloader.rb:16:in `reload!'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/application/routes_reloader.rb:26:in `block in updater'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-
4.0.0/lib/active_support/file_update_checker.rb:75:in `call'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-
4.0.0/lib/active_support/file_update_checker.rb:75:in `execute'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/application/routes_reloader.rb:27:in `updater'
        from C:131071:in `execute_if_updated'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/application/finisher.rb:69:in `block in <module:Finisher>'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/initializable.rb:30:in `instance_exec'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/initializable.rb:30:in `run'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/initializable.rb:55:in `block in run_initializers'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:150:in `block i
n tsort_each'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:183:in `block (
2 levels) in each_strongly_connected_component'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:219:in `each_st
rongly_connected_component_from'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:182:in `block i
n each_strongly_connected_component'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:180:in `each'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:180:in `each_st
rongly_connected_component'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:148:in `tsort_e
ach'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/initializable.rb:54:in `run_initializers'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/application.rb:215:in `initialize!'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/railtie/configurable.rb:30:in `method_missing'
        from D:/lab4/mytwitter/config/environment.rb:5:in `<top (required)>'
        from D:/lab4/mytwitter/config.ru:3:in `require'
        from D:/lab4/mytwitter/config.ru:3:in `block in <main>'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib
/rack/builder.rb:55:in `instance_eval'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib
/rack/builder.rb:55:in `initialize'
        from D:/lab4/mytwitter/config.ru:in `new'
        from D:/lab4/mytwitter/config.ru:in `<main>'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib
/rack/builder.rb:49:in `eval'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib
/rack/builder.rb:49:in `new_from_string'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib
/rack/builder.rb:40:in `parse_file'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib
/rack/server.rb:277:in `build_app_and_options_from_config'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib
/rack/server.rb:199:in `app'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/commands/server.rb:48:in `app'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rack-1.5.2/lib
/rack/server.rb:314:in `wrapped_app'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/commands/server.rb:75:in `start'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/commands.rb:78:in `block in <top (required)>'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/commands.rb:73:in `tap'
        from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.0
/lib/rails/commands.rb:73:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'