title: LoadError: cannot load such file -- watir/WindowHelper
body: <pre><code>irb(main):011:0&gt; require 'watir/WindowHelper'
  
  LoadError: cannot load such file -- watir/WindowHelper from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:i    
  n `require' from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:i    
  n `rescue in require'from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:35:i    
  n `require'from (irb):11 from C:/Ruby193/bin/irb:12:in `&lt;main&gt;'    
  </code></pre>
  
  <p>I get this error while trying</p>
  
  <pre><code>require 'watir/WindowHelper'
  </code></pre>
  
  <p>Can anyone tell me why this happens and the solution for it?
  I am not able to handle the IE pop up while clicking on a link to download files.</p>