title: Completed 500 Internal Server Error; RestClient::NotAcceptable (406 Not Acceptable)
body: <p>I'm pretty new in Rails and on stackoverflow so I'll try to be explicite.
  I was asking to change someone project, so I get the sources and try to make it works on
  my own work computer (that's on Windows ...) to test it on my local browser (cf : rails s). The project is suppose to be working because it's already in production, so I assume that the problem come from my own work environment.
  After installing all the needed gems, run bundle install and launch database serveur (the project is using mongodb), I run rails server. The command actually works but as soon as I try to connect on the application with any browser on the localhost adress (http://localhost:3000/) I get an error and I reaaly don't understand the cause...</p>
  
  <p>This is the log I get :</p>
  
  <hr>
  
  <pre><code>Started GET "/" for 127.0.0.1 at 2012-12-04 14:51:30 +0100
  Processing by HomeController#index as HTML
  ** [Localeapp] 1354629090-- Handling translation updates
  ** [Localeapp] 1354629090 - polling
  ** [Localeapp] API CALL: get https://api.localeapp.com/v1/projects/hhMxHgKAzj9p1dFuS0GnTTnemJ5F9dXLDuCa1KacQSymUcmTFk/translations.yml?updated_at=1354612995
  ** [Localeapp] ATTEMPT 1
  Completed 500 Internal Server Error in 1192ms
  
  RestClient::NotAcceptable (406 Not Acceptable):
    rest-client (1.6.7) lib/restclient/abstract_response.rb:48:in `return!'
    rest-client (1.6.7) lib/restclient/request.rb:230:in `process_result'
    rest-client (1.6.7) lib/restclient/request.rb:178:in `block in transmit'
    C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/net/http.rb:745:in `start'
    rest-client (1.6.7) lib/restclient/request.rb:172:in `transmit'
    rest-client (1.6.7) lib/restclient/request.rb:64:in `execute'
    rest-client (1.6.7) lib/restclient/request.rb:33:in `execute'
    localeapp (0.5.2) lib/localeapp/api_caller.rb:66:in `make_call'
    localeapp (0.5.2) lib/localeapp/api_caller.rb:28:in `call'
    localeapp (0.5.2) lib/localeapp/api_call.rb:6:in `api_call'
    localeapp (0.5.2) lib/localeapp/poller.rb:43:in `poll!'
    localeapp (0.5.2) lib/localeapp/rails/controller.rb:14:in `handle_translation_updates'
    activesupport (3.2.3) lib/active_support/callbacks.rb:429:in `_run__744959596__process_action__507377612__callbacks'
    activesupport (3.2.3) lib/active_support/callbacks.rb:405:in `__run_callback'
    activesupport (3.2.3) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
    activesupport (3.2.3) lib/active_support/callbacks.rb:81:in `run_callbacks'
    actionpack (3.2.3) lib/abstract_controller/callbacks.rb:17:in `process_action'
    actionpack (3.2.3) lib/action_controller/metal/rescue.rb:29:in `process_action'
    actionpack (3.2.3) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
    activesupport (3.2.3) lib/active_support/notifications.rb:123:in `block in instrument'
    activesupport (3.2.3) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
    activesupport (3.2.3) lib/active_support/notifications.rb:123:in `instrument'
    actionpack (3.2.3) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
    actionpack (3.2.3) lib/action_controller/metal/params_wrapper.rb:205:in `process_action'
    actionpack (3.2.3) lib/abstract_controller/base.rb:121:in `process'
    actionpack (3.2.3) lib/abstract_controller/rendering.rb:45:in `process'
    actionpack (3.2.3) lib/action_controller/metal.rb:203:in `dispatch'
    actionpack (3.2.3) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
    actionpack (3.2.3) lib/action_controller/metal.rb:246:in `block in action'
    actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:73:in `call'
    actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
    actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:36:in `call'
    journey (1.0.4) lib/journey/router.rb:68:in `block in call'
    journey (1.0.4) lib/journey/router.rb:56:in `each'
    journey (1.0.4) lib/journey/router.rb:56:in `call'
    actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:600:in `call'
    omniauth (1.1.1) lib/omniauth/strategy.rb:177:in `call!'
    omniauth (1.1.1) lib/omniauth/strategy.rb:157:in `call'
    omniauth (1.1.1) lib/omniauth/builder.rb:48:in `call'
    mongoid (2.5.0) lib/rack/mongoid/middleware/identity_map.rb:33:in `block in call'
    mongoid (2.5.0) lib/mongoid.rb:133:in `unit_of_work'
    mongoid (2.5.0) lib/rack/mongoid/middleware/identity_map.rb:33:in `call'
    sass (3.2.1) lib/sass/plugin/rack.rb:54:in `call'
    warden (1.2.1) lib/warden/manager.rb:35:in `block in call'
    warden (1.2.1) lib/warden/manager.rb:34:in `catch'
    warden (1.2.1) lib/warden/manager.rb:34:in `call'
    actionpack (3.2.3) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
    rack (1.4.1) lib/rack/etag.rb:23:in `call'
    rack (1.4.1) lib/rack/conditionalget.rb:25:in `call'
    actionpack (3.2.3) lib/action_dispatch/middleware/head.rb:14:in `call'
    actionpack (3.2.3) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
    actionpack (3.2.3) lib/action_dispatch/middleware/flash.rb:242:in `call'
    rack (1.4.1) lib/rack/session/abstract/id.rb:205:in `context'
    rack (1.4.1) lib/rack/session/abstract/id.rb:200:in `call'
    actionpack (3.2.3) lib/action_dispatch/middleware/cookies.rb:338:in `call'
    actionpack (3.2.3) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
    activesupport (3.2.3) lib/active_support/callbacks.rb:405:in `_run__286698992__call__202403334__callbacks'
    activesupport (3.2.3) lib/active_support/callbacks.rb:405:in `__run_callback'
    activesupport (3.2.3) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
    activesupport (3.2.3) lib/active_support/callbacks.rb:81:in `run_callbacks'
    actionpack (3.2.3) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
    actionpack (3.2.3) lib/action_dispatch/middleware/reloader.rb:65:in `call'
    actionpack (3.2.3) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
    actionpack (3.2.3) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
    actionpack (3.2.3) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
    railties (3.2.3) lib/rails/rack/logger.rb:26:in `call_app'
    railties (3.2.3) lib/rails/rack/logger.rb:16:in `call'
    quiet_assets (1.0.1) lib/quiet_assets.rb:20:in `call_with_quiet_assets'
    actionpack (3.2.3) lib/action_dispatch/middleware/request_id.rb:22:in `call'
    rack (1.4.1) lib/rack/methodoverride.rb:21:in `call'
    rack (1.4.1) lib/rack/runtime.rb:17:in `call'
    activesupport (3.2.3) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
    rack (1.4.1) lib/rack/lock.rb:15:in `call'
    actionpack (3.2.3) lib/action_dispatch/middleware/static.rb:62:in `call'
    airbrake (3.1.4) lib/airbrake/rack.rb:41:in `call'
    airbrake (3.1.4) lib/airbrake/user_informer.rb:12:in `call'
    railties (3.2.3) lib/rails/engine.rb:479:in `call'
    railties (3.2.3) lib/rails/application.rb:220:in `call'
    railties (3.2.3) lib/rails/railtie/configurable.rb:30:in `method_missing'
    rack (1.4.1) lib/rack/deflater.rb:13:in `call'
    rack (1.4.1) lib/rack/content_length.rb:14:in `call'
    railties (3.2.3) lib/rails/rack/log_tailer.rb:14:in `call'
    thin (1.4.1) lib/thin/connection.rb:80:in `block in pre_process'
    thin (1.4.1) lib/thin/connection.rb:78:in `catch'
    thin (1.4.1) lib/thin/connection.rb:78:in `pre_process'
    thin (1.4.1) lib/thin/connection.rb:53:in `process'
    thin (1.4.1) lib/thin/connection.rb:38:in `receive_data'
    eventmachine-1.0.0-x86 (mingw32) lib/eventmachine.rb:187:in `run_machine'
    eventmachine-1.0.0-x86 (mingw32) lib/eventmachine.rb:187:in `run'
    thin (1.4.1) lib/thin/backends/base.rb:63:in `start'
    thin (1.4.1) lib/thin/server.rb:159:in `start'
    rack (1.4.1) lib/rack/handler/thin.rb:13:in `run'
    rack (1.4.1) lib/rack/server.rb:265:in `start'
    railties (3.2.3) lib/rails/commands/server.rb:70:in `start'
    railties (3.2.3) lib/rails/commands.rb:55:in `block in &lt;top (required)&gt;'
    railties (3.2.3) lib/rails/commands.rb:50:in `tap'
    railties (3.2.3) lib/rails/commands.rb:50:in `&lt;top (required)&gt;'
    script/rails:6:in `require'
    script/rails:6:in `&lt;main&gt;'
  
  
    Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/templates/rescues/_trace.erb (4.0ms)
    Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (2.0ms)
    Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (56.0ms)
  </code></pre>
  
  <hr>
  
  <p>And this is the controller that's mentionned :</p>
  
  <hr>
  
  <pre><code>class HomeController &lt; ApplicationController
    def index
      @presenter = Home::IndexPresenter.new
      @article_presenter = Articles::IndexPresenter.new(Article.with_state(:published).last)
    end
  end
  </code></pre>
  
  <hr>
  
  <p>If someone could help me it would be very kind. Ask if I forgot to mention something.
  Thanks you.</p>