JRuby EventMachine no such file to load

Question

I have intalled EventMachine in JRuby (I am using Win32). When I try the server example, I get an error when

require 'eventmachine'

The error is:

C:\dev\em>jruby server.rb

server.rb:1:in `require': no such file to load -- eventmachine (LoadError) from server.rb:1

But the gem is installed!

C:\dev\myapp>jruby -S gem install eventmachine
Successfully installed eventmachine-0.12.8-java
1 gem installed
Installing ri documentation for eventmachine-0.12.8-java...
Installing RDoc documentation for eventmachine-0.12.8-java...
Could not find main page README
Could not find main page README
Could not find main page README
Could not find main page README

Answer 1

You need to first load RubyGems,

require 'rubygems'