`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:inconst_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:inrequire’
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:inload’
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:ineach’
… 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:inload’
from /usr/bin/rcov:19
Please help me.

Thanks
Amit Jain