title: Rails - 500 Internal Server Error
body: <p>I'm getting the following error when I try to pull up an old app and can't seem to pin point the problem. I'm getting a 'call_with_exception' error and Googling provided no help. Can anyone point me to the right direction? I'm on Rails 2.3.5, Ruby 1.8.7, and using RVM.</p>
  
  <pre><code>$ script/server 
  =&gt; Booting Mongrel
  =&gt; Rails 2.3.5 application starting on http://0.0.0.0:3000
  =&gt; Call with -d to detach
  =&gt; Ctrl-C to shutdown server
    SQL (0.1ms)   SET SQL_AUTO_IS_NULL=0
  /!\ FAILSAFE /!\  Tue May 24 08:31:57 -0700 2011
    Status: 500 Internal Server Error
    undefined method `call_with_exception' for ApplicationController:Class
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:90:in `dispatch'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:121:in `_call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:130:in `build_middleware_stack'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:9:in `cache'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:28:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/actionpack-2.3.5/lib/action_controller/string_coercion.rb:25:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rack-1.0.1/lib/rack/head.rb:9:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/actionpack-2.3.5/lib/action_controller/params_parser.rb:15:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/actionpack-2.3.5/lib/action_controller/session/cookie_store.rb:93:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/actionpack-2.3.5/lib/action_controller/failsafe.rb:26:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rack-1.0.1/lib/rack/lock.rb:11:in `synchronize'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:114:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/actionpack-2.3.5/lib/action_controller/reloader.rb:34:in `run'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:108:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rails-2.3.5/lib/rails/rack/static.rb:31:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `each'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rails-2.3.5/lib/rails/rack/log_tailer.rb:17:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rack-1.0.1/lib/rack/content_length.rb:13:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rack-1.0.1/lib/rack/chunked.rb:15:in `call'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rack-1.0.1/lib/rack/handler/mongrel.rb:64:in `process'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/mongrel-1.1.5/lib/mongrel.rb:159:in `process_client'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `each'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `process_client'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `initialize'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `new'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `initialize'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `new'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `run'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rack-1.0.1/lib/rack/handler/mongrel.rb:34:in `run'
      /Users/my_user_dir/.rvm/gems/ruby-1.8.7-p334@rails235/gems/rails-2.3.5/lib/commands/server.rb:111
      /Users/my_user_dir/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `gem_original_require'
      /Users/my_user_dir/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `require'
      script/server:3
  </code></pre>