title: Rails is broken after upgrading to Ubuntu 11.04
body: <p>I'm still relatively new to Rails and Ruby - and after upgrading to the new version of Ubuntu (11.04), my rails installation is not working correctly. I've tried updating Rails, and updating the versions I have installed using RVM, none of which worked.</p>
  
  <p>Here is the terminal output:</p>
  
  <pre><code> /usr/share/rails-ruby1.8/railties/lib/rails_generator/options.rb:32:in `default_options': undefined    method `write_inheritable_attribute' for Rails::Generator::Base:Class (NoMethodError)
      from /usr/share/rails-ruby1.8/railties/lib/rails_generator/base.rb:90:in `&lt;class:Base&gt;'
      from /usr/share/rails-ruby1.8/railties/lib/rails_generator/base.rb:85:in `&lt;module:Generator&gt;'
      from /usr/share/rails-ruby1.8/railties/lib/rails_generator/base.rb:48:in `&lt;module:Rails&gt;'
      from /usr/share/rails-ruby1.8/railties/lib/rails_generator/base.rb:6:in `&lt;top (required)&gt;'
      from /home/alec/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
      from /home/alec/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
      from /usr/share/rails-ruby1.8/railties/lib/rails_generator.rb:34:in `&lt;top (required)&gt;'
      from &lt;internal:lib/rubygems/custom_require&gt;:29:in `require'
      from &lt;internal:lib/rubygems/custom_require&gt;:29:in `require'
      from /usr/share/rails-ruby1.8/railties/bin/rails:14:in `&lt;main&gt;'
  </code></pre>
  
  <p>From that, I tried updating railties specifically, but that didn't work either. The output hasn't changed since I first received the error.</p>