您好，我是 ruby 和 rails 的新手……但是当我启动 rail 服务器时，我收到了这个错误
这是我得到的错误
D:\mynewapp>ruby script/server
=> 启动 WEBrick => Rails 2.3.5 应用程序从http://0.0.0.0:3000
D:/ruby/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in require': n
such file to load -- rush (MissingSourceFile)
from D:/ruby/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
require'
from D:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_s
port/dependencies.rb:156:inblock in require'开始来自 D:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_s port/dependencies.rb:521:in new_constants_in'
from D:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_s
port/dependencies.rb:156:inrequire' 来自 D:/mynewapp/vendor/gems/delayed_job- 1.7.0/lib/delayed/worker.r 1:in <top (required)>'
from D:/ruby/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
require'
from D:/ruby/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
require'
from D:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_s
port/dependencies.rb:156:inblock in require' 来自 D:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_s port/dependencies.rb :521:in new_constants_in'
from D:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_s
port/dependencies.rb:156:inrequire' 来自 D:/mynewapp/vendor/gems/delayed_job-1.7.0/lib/delayed_job.rb:6 n <top (required)>'
from D:/ruby/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
require'
from D:/ruby/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
require'
from D:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_s
port/dependencies.rb:156:inblock in require' 来自 D:/ruby/lib/ruby/gems/1.9.1/ gems/activesupport-2.3.5/lib/active_s 端口/dependencies.rb:521:innew_constants_in'
from D:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_s
port/dependencies.rb:156:in来自 D:/mynewapp/config/environment.rb:39:inblock in <top (requir
)>'
from D:/ruby/lib/ruby/gems/1.9.1/gems/rails-2.3.5/lib/initializer.rb:1
:in的 require' 来自 D:/mynewapp/config/environment.rb:9:in 的<top (required)>'
from D:/ruby/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
require'
from D:/ruby/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
require'
from D:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_s
port/dependencies.rb:156:in块中的运行'来自 D:/ruby/lib/ruby/gems/ 1.9.1/gems/activesupport-2.3.5/lib/active_s port/dependencies.rb:521:in new_constants_in'
from D:/ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_s
port/dependencies.rb:156:inrequire' 来自 D:/ruby/lib/ruby/gems/1.9.1/gems/rails-2.3.5/库/命令/服务器。：84：在<top (required)>'
from D:/ruby/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
require'
from D:/ruby/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
require'
from script/server:3:in'
任何帮助将不胜感激
提前致谢