# IronRuby.Rack app failing **URL:** \ **Category:** IronRuby\ **Created:** [October 20, 2009, 4:39pm UTC](https://www.ruby-forum.com/t/ironruby-rack-app-failing/177586 "2009-10-20T16:39:54Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![James\_Thompson](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/b2d939/32.png) [@James\_Thompson](https://www.ruby-forum.com/u/James_Thompson)\ **Post date:** [October 20, 2009, 4:39pm UTC](https://www.ruby-forum.com/t/ironruby-rack-app-failing/177586/1 "2009-10-20T16:39:54Z")
I am getting a message that seems odd to me when my IronRuby.Rack app fails to start. This error only gets displayed to me in the browser, nothing is getting logged to production.log or ironrack.log besides the startup of the app appearing in ironrack.log. Any help? ==== BEGIN ==== Error: uninitialized constant ERB::TOPLEVEL\_BINDING D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/dependencies.rb:105:in `const_missing': uninitialized constant ERB::TOPLEVEL_BINDING (NameError) from erb.rb:708:in `result’ from D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:902:in `database_configuration' from D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:437:in `initialize\_database’ from D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:141:in `process' from D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:113:in `run’ from D:\Web Applications\nobts-gradcontactinfo\public../config/environment.rb:9 from D:/IronRuby/0.9.1/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:31:in `require' from :0:in ` **send** ’ from :1 from D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/rack-1.0.0/lib/rack/builder.rb:29:in `initialize’ from :0 from :0:in `require' from :0:in `instance\_eval’ from IronRuby.Rack:0:in `Execute' from IronRuby.Rack:0:in `Rackup’ from IronRuby.Rack:0:in `.ctor' from IronRuby.Rack:0:in `GetHandler’ from System.Web:0:in `MapHttpHandler' from System.Web:0:in `System.Web.HttpApplication.IExecutionStep.Execute’ from System.Web:0:in `ExecuteStep' from System.Web:0:in `ResumeSteps’ from System.Web:0:in `System.Web.IHttpAsyncHandler.BeginProcessRequest’ from System.Web:0:in `ProcessRequestInternal' from System.Web:0:in `ProcessRequestNoDemand’ from System.Web:0:in `ProcessRequest’ Search paths D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/actionmailer-2.3.4/lib/action\_mailer/vendor/tmail-1.2.3 D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/vendor/i18n-0.1.3/lib D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/vendor/tzinfo-0.3.12 D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/vendor/memcache-client-1.7.4 D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/vendor/builder-2.1.2 D:/Web Applications/nobts-gradcontactinfo/app/controllers/ D:/Web Applications/nobts-gradcontactinfo/app D:/Web Applications/nobts-gradcontactinfo/app/models D:/Web Applications/nobts-gradcontactinfo/app/controllers D:/Web Applications/nobts-gradcontactinfo/app/helpers D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/rails-2.3.4/lib/…/builtin/rails\_info/ D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/rails-2.3.4/lib D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/rails-2.3.4/bin D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/activeresource-2.3.4/bin D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/activeresource-2.3.4/lib D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/actionmailer-2.3.4/bin D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/actionmailer-2.3.4/lib D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/actionpack-2.3.4/bin D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/actionpack-2.3.4/lib D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/activerecord-2.3.4/bin D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/activerecord-2.3.4/lib D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/activesupport-2.3.4/bin D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/activesupport-2.3.4/lib D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/rake-0.8.7/bin D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/rake-0.8.7/lib D:\Web Applications\nobts-gradcontactinfo\public.. D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/rack-1.0.0/bin D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8/gems/rack-1.0.0/lib D:/IronRuby/0.9.1/lib/IronRuby D:/IronRuby/0.9.1/lib/ruby/site\_ruby/1.8 D:/IronRuby/0.9.1/lib/ruby/1.8 D:/Web Applications/nobts-gradcontactinfo/public . Gem paths D:/IronRuby/0.9.1/lib/IronRuby/gems/1.8 D:/IronRuby/0.9.1/lib/IronRuby/…/…//lib/ironruby/gems/1.8 ==== END ==== James Thompson Plain Programs New Orleans, LA P: (502) 619.0353 E: removed\_email\_address@domain.invalid W: [www.plainprograms.com](http://www.plainprograms.com) ---
**Author:** ![James\_Thompson](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/b2d939/32.png) [@James\_Thompson](https://www.ruby-forum.com/u/James_Thompson)\ **Post date:** [October 20, 2009, 5:13pm UTC](https://www.ruby-forum.com/t/ironruby-rack-app-failing/177586/2 "2009-10-20T17:13:17Z")
Never mind, I found my answer in the archives: [http://www.mail-archive.com/removed\_email\_address@domain.invalid/msg04642.html](http://www.mail-archive.com/removed_email_address@domain.invalid/msg04642.html) Apparently my Google skills are slipping. James Thompson Plain Programs New Orleans, LA P: (502) 619.0353 E: removed\_email\_address@domain.invalid W: [www.plainprograms.com](http://www.plainprograms.com)