Unable to start rail application at localhost

i am new to ruby on rail. i installed it to my computer.After that i
created the rail application by typing in terminal
rail rubyapplication
It was
create
in my home directory.Afterwared i did follwoing
cd /home/administrator
and then
try
this

                 rail script/server                   and got 

following
message

[email protected]:~/rubyapplication$ ruby script/server
./script/…/config/…/vendor/rails/railties/lib/rails/vendor_gem_source_index.rb:1:in
require': no such file to load -- rubygems (LoadError) from ./script/../config/../vendor/rails/railties/lib/rails/vendor_gem_source_index.rb:1 from ./script/../config/../vendor/rails/railties/lib/rails/gem_dependency.rb:1:inrequire’
from
./script/…/config/…/vendor/rails/railties/lib/rails/gem_dependency.rb:1
from
./script/…/config/…/vendor/rails/railties/lib/initializer.rb:10:in
require' from ./script/../config/../vendor/rails/railties/lib/initializer.rb:10 from ./script/../config/boot.rb:45:inrequire’
from ./script/…/config/boot.rb:45:in load_initializer' from ./script/../config/boot.rb:38:inrun’
from ./script/…/config/boot.rb:11:in boot!' from ./script/../config/boot.rb:109 from script/server:2:inrequire’
from script/server:2

                                     Then i type following in brower 

to
start the server

                                  localhost:3000
                                                      it gave the 

error

Firefox can’t establish a connection to the server at localhost:300

              What is this.? how to resolve it..

somebody tell me proper how to run rail project (rubyapplication in my
case)
on the rail server

Thanks in advance

Amritpal,

script/server failed to start because you’re missing rubygems. I’m
guessing
you’re using Ubuntu based on the hostname, so check out
https://help.ubuntu.com/community/RubyOnRails#Installing%20RubyGems.

On Sat, Oct 16, 2010 at 11:02 AM, amritpal pathak
<[email protected]

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