gem_original_require Error

Hello all,

I have gem version 0.8.11 and rails version 1.2.6. When I try running the server using ruby script/server, I get an error “./script/…/config/boot.rb:23: undefined method gem for main:Object (NoMethodError)”

I tried updating the gems by gem update --system, but this gives an error “./libs/rubygems/custom_require.rb:27: in gem_original_require no such file to load --rdoc/rdoc (LoadError)”

Can anyone please help