`load_missing_constant': uninitialized constant Rails::Railt

Hi All,

I run rake gems:install rake gems:unpack

If i add configure the rspec-rails gem in config/environment.rb:

                 config.gem "rspec-rails", :version => ">= 1.3.2"

and then run server. I am getting this error:

/home/Amit/Myworkspace/MyApplication/config/../vendor/rails/railties/lib/rails/gem_dependency.rb:119:Warning: Gem::Dependency#version_requirements is deprecated and will be removed on or after August 2010. Use #requirement /home/Amit/Myworkspace/MyApplication/vendor/rails/activesupport/lib/active_support/dependencies.rb:440:in `load_missing_constant': uninitialized constant Rails::Railtie (NameError)   from /home/Amit/Myworkspace/MyApplication/vendor/rails/activesupport/lib/active_support/dependencies.rb:80:in `const_missing'   from /home/Amit/Myworkspace/MyApplication/vendor/gems/rspec-rails-2.0.0.beta.19/lib/rspec-rails.rb:3   from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'   from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'   from /home/Amit/Myworkspace/MyApplication/vendor/rails/activesupport/lib/active_support/dependencies.rb:158:in `require'   from /home/Amit/Myworkspace/MyApplication/config/../vendor/rails/railties/lib/rails/gem_dependency.rb:208:in `load'   from /home/Amit/Myworkspace/MyApplication/config/../vendor/rails/railties/lib/initializer.rb:307:in `load_gems'   from /home/Amit/Myworkspace/MyApplication/config/../vendor/rails/railties/lib/initializer.rb:307:in `each'    ... 11 levels...   from /usr/lib/ruby/gems/1.8/gems/rcov-0.9.8/bin/rcov:511:in `load'   from /usr/lib/ruby/gems/1.8/gems/rcov-0.9.8/bin/rcov:511   from /usr/bin/rcov:19:in `load'   from /usr/bin/rcov:19 Please help me.

Thanks Amit Jain