active_admin error

gistfile1.txt

2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/gems/newrelic_rpm-3.1.1/lib/new_relic/rack/browser_monitoring.rb:42:in `autoinstrument_source'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/gems/newrelic_rpm-3.1.1/lib/new_relic/rack/browser_monitoring.rb:21:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/barista-0d85a193da9c/lib/barista/server.rb:33:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/gems/warden-1.0.5/lib/warden/manager.rb:35:in `block in call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/gems/warden-1.0.5/lib/warden/manager.rb:34:in `catch'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/gems/warden-1.0.5/lib/warden/manager.rb:34:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/rails-4b411c80cc96/actionpack/lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/gems/rack-1.3.2/lib/rack/etag.rb:23:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/gems/rack-1.3.2/lib/rack/conditionalget.rb:25:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/rails-4b411c80cc96/actionpack/lib/action_dispatch/middleware/head.rb:14:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/rails-4b411c80cc96/actionpack/lib/action_dispatch/middleware/params_parser.rb:21:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/rails-4b411c80cc96/actionpack/lib/action_dispatch/middleware/flash.rb:243:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/gems/rack-1.3.2/lib/rack/session/abstract/id.rb:195:in `context'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/gems/rack-1.3.2/lib/rack/session/abstract/id.rb:190:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/rails-4b411c80cc96/actionpack/lib/action_dispatch/middleware/cookies.rb:326:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/rails-4b411c80cc96/activerecord/lib/active_record/query_cache.rb:62:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/rails-4b411c80cc96/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb:477:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/rails-4b411c80cc96/actionpack/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/rails-4b411c80cc96/activesupport/lib/active_support/callbacks.rb:392:in `_run_call_callbacks'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/rails-4b411c80cc96/activesupport/lib/active_support/callbacks.rb:81:in `run_callbacks'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/rails-4b411c80cc96/actionpack/lib/action_dispatch/middleware/callbacks.rb:28:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/gems/rack-1.3.2/lib/rack/sendfile.rb:101:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/bundler/gems/rails-4b411c80cc96/actionpack/lib/action_dispatch/middleware/remote_ip.rb:48:in `call'
2011-08-18T09:02:49+00:00 app[web.1]:   /app/vendor/bundle/ruby/1.9.1/gems/rack-1.3.2/lib/rack/methodoverride.rb:24:in `call'
2011-08-18T09:02:49+00:00 app[web.1]: 
2011-08-18T09:02:49+00:00 app[web.1]: NoMethodError (undefined method `rindex' for #<Arbre::Context:0x0000000838b208>):
2011-08-18T09:02:49+00:00 app[web.1]:   
2011-08-18T09:02:49+00:00 app[web.1]: 
2011-08-18T09:02:49+00:00 app[web.1]: 
2011-08-18T09:02:49+00:00 app[web.1]: cache: [GET /admin/admin_users] miss
2011-08-18T09:02:49+00:00 app[web.1]:   Processing by Admin::AdminUsersController#index as HTML
2011-08-18T09:02:49+00:00 app[web.1]: Compiled ~/app/assets/stylesheets/admin/active_admin.css.scss  (852ms)  (pid 1)
2011-08-18T09:02:49+00:00 app[web.1]: Compiled ~/app/assets/stylesheets/admin/active_admin.css.scss  (437ms)  (pid 1)
2011-08-18T09:02:49+00:00 app[web.1]: Compiled ~/app/assets/javascripts/admin/active_admin.js  (0ms)  (pid 1)
2011-08-18T09:02:49+00:00 app[web.1]: Compiled ~/vendor/bundle/ruby/1.9.1/bundler/gems/active_admin-ddfaa0509e6f/app/assets/javascripts/active_admin/base.js  (0ms)  (pid 1)
2011-08-18T09:02:49+00:00 app[web.1]: Compiled ~/vendor/bundle/ruby/1.9.1/bundler/gems/active_admin-ddfaa0509e6f/app/assets/javascripts/active_admin/vendor.js  (1ms)  (pid 1)
2011-08-18T09:02:49+00:00 app[web.1]: Compiled ~/app/assets/javascripts/admin/active_admin.js  (1508ms)  (pid 1)
2011-08-18T09:02:49+00:00 app[web.1]: Rendered vendor/bundle/ruby/1.9.1/bundler/gems/active_admin-ddfaa0509e6f/app/views/active_admin/resource/index.html.arb (3089.7ms)
2011-08-18T09:02:49+00:00 app[web.1]: Completed 200 OK in 3362ms (Views: 3200.3ms | ActiveRecord: 7.1ms)