# Ruby on Rails application could not be started **URL:** \ **Category:** Rails\ **Created:** [February 25, 2010, 10:27am UTC](https://www.ruby-forum.com/t/ruby-on-rails-application-could-not-be-started/184115 "2010-02-25T10:27:44Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![canner](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/f9ae1b/32.png) [@canner](https://www.ruby-forum.com/u/canner)\ **Post date:** [February 25, 2010, 10:27am UTC](https://www.ruby-forum.com/t/ruby-on-rails-application-could-not-be-started/184115/1 "2010-02-25T10:27:44Z")
Hi, Hi, I’m upt o install retrospectiva on my centOS 5 machine. Therefore, i installed ruby 1.9.1 (ruby 1.9.1p376 (2009-12-07 revision 26041) [x86\_64-linux]) and following gems: \*\*\* LOCAL GEMS \*\*\* actionmailer (2.3.5) actionpack (2.3.5) activerecord (2.3.5) activeresource (2.3.5) activesupport (2.3.5) fastthread (1.0.7) mysql (2.8.1) passenger (2.2.10) rack (1.0.1) rails (2.3.5) rake (0.8.7) sinatra (0.9.4) Furthermore, I put the passenger module into my apache conf LoadModule passenger\_module /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/ext/apache2/mod\_passenger.so PassengerRoot /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10 PassengerRuby /usr/local/bin/ruby A vhost exists for /pathToRetrospectiva/public . If I call the URL for my retrospectiva Host, I get the error “Ruby on Rails application could not be started” Error message: invalid byte sequence in US-ASCII Exception class: ArgumentError Backtrace from Browser: Backtrace: # File Line Location 0 /var/www/retrospectiva/lib/retrospectiva/previewable/base.rb 9 in `block in load!' 1 /var/www/retrospectiva/lib/retrospectiva/previewable/base.rb 5 in`each’ 2 /var/www/retrospectiva/lib/retrospectiva/previewable/base.rb 5 in `load!' 3 /var/www/retrospectiva/config/environment.rb 71 in`block (2 levels) in ’ 4 /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.5/lib/ initializer.rb 614 in `call' 5 /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.5/lib/ initializer.rb 614 in`block in after\_initialize’ 6 /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.5/lib/ initializer.rb 613 in `each' 7 /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.5/lib/ initializer.rb 613 in`after\_initialize’ 8 /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.5/lib/ initializer.rb 179 in `process' 9 /usr/local/lib/ruby/gems/1.9.1/gems/rails-2.3.5/lib/ initializer.rb 113 in`run’ 10 /var/www/retrospectiva/config/environment.rb 11 in `' 11 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion_passenger/railz/application_spawner.rb 303 in`require’ 12 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion\_passenger/railz/application\_spawner.rb 303 in `preload_application' 13 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion_passenger/railz/application_spawner.rb 252 in`block in initialize\_server’ 14 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion\_passenger/utils.rb 255 in `report_app_init_status' 15 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion_passenger/railz/application_spawner.rb 237 in`initialize\_server’ 16 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion\_passenger/abstract\_server.rb 194 in `start_synchronously' 17 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion_passenger/abstract_server.rb 163 in`start’ 18 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion\_passenger/railz/application\_spawner.rb 213 in `start' 19 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion_passenger/spawn_manager.rb 262 in`block (2 levels) in spawn\_rails\_application’ 20 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion\_passenger/abstract\_server\_collection.rb 126 in `lookup_or_add' 21 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion_passenger/spawn_manager.rb 256 in`block in spawn\_rails\_application’ 22 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion\_passenger/abstract\_server\_collection.rb 80 in `block in synchronize' 23 prelude> 8:in`synchronize’ 24 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion\_passenger/abstract\_server\_collection.rb 79 in `synchronize' 25 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion_passenger/spawn_manager.rb 255 in`spawn\_rails\_application’ 26 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion\_passenger/spawn\_manager.rb 154 in `spawn_application' 27 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion_passenger/spawn_manager.rb 287 in`handle\_spawn\_application’ 28 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion\_passenger/abstract\_server.rb 352 in `main_loop' 29 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/lib/ phusion_passenger/abstract_server.rb 196 in`start\_synchronously’ 30 /usr/local/lib/ruby/gems/1.9.1/gems/passenger-2.2.10/bin/ passenger-spawn-server 61 in `’ Does anyone know, how this error can be solved? alex