Fail to start a lower Version ( Rails 1.1.6) Rails Project

I have a RoR project in rails version 1.1.6. Just to start this project i just install rails of version 1.1.6

but when i am going to start to start the server then i got the following error..

D:\simpleticket>ruby script/server ./script/../config/boot.rb:25:Warning: Gem::SourceIndex#search support for Strin g patterns is deprecated ./script/../config/boot.rb:28: undefined method `require_gem' for main:Object (N oMethodError)         from D:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 31:in `ge m_original_require'         from D:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 31:in `re quire'         from script/server:2

So, At this Present How can i able to start this lower version project, Please Help me...

Thanking You

You're rails app doesn't like the version of rubygems you have installed ( require_gem was deprecated and then replaced with gem). It may be enough to replace occurrences of require_gem with gem

Fred