Is this error in installing rails via rubygems important?

Horatio:~ Rahul$ sudo gem install rails --include-dependencies
Attempting local installation of 'rails'
Local gem file not found: rails*.gem
Attempting remote installation of 'rails'
Updating Gem source index for: http://gems.rubyforge.org
Successfully installed rails-1.0.0
Successfully installed rake-0.6.2
Successfully installed activesupport-1.2.5
Successfully installed activerecord-1.13.2
Successfully installed actionpack-1.11.2
Successfully installed actionmailer-1.1.5
Successfully installed actionwebservice-1.0.0
Installing RDoc documentation for rake-0.6.2...

lib/rake.rb:733:18: unexpected token: '#<RubyToken::TkLPAREN:0x515748 @text="(", @char_no=7, @line_no=733>'
Installing RDoc documentation for activesupport-1.2.5...
Installing RDoc documentation for activerecord-1.13.2...
Installing RDoc documentation for actionpack-1.11.2...

lib/action_controller/code_generation.rb:77:31: unexpected token: '#<RubyToken::TkLPAREN:0x2fdaee8 @text="(", @char_no=19, @line_no=77>'

lib/action_controller/code_generation.rb:168:31: unexpected token: '#<RubyToken::TkLPAREN:0x104f180 @text="(", @char_no=19, @line_no=168>'
ERROR:  While executing gem ... (NoMethodError)
    undefined method `find_module_named' for nil:NilClass