Ruby on Rails application could not be started

These are the possible causes:
  • There may be a syntax error in the application's code. Please check for such errors and fix them.
  • A required library may not installed. Please install all libraries that this application requires.
  • The application may not be properly configured. Please check whether all configuration files are written correctly, fix any incorrect configurations, and restart this application.
  • A service that the application relies on (such as the database server or the Ferret search engine server) may not have been started. Please start that service.
Further information about the error may have been written to the application's log file. Please check it in order to analyse the problem.
Error message:
RedCloth is not a class
Exception class:
TypeError
Application root:
/home/kennedia/rails/kennedia/releases/20080630082123
Backtrace:
# File Line Location
0 ./config/environment.rb 70
1 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb 27 in `gem_original_require'
2 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb 27 in `require'
3 /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb 496 in `require'
4 /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb 342 in `new_constants_in'
5 /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb 496 in `require'
6 /root/source/passenger/lib/passenger/application_spawner.rb 341 in `preload_application'
7 /root/source/passenger/lib/passenger/application_spawner.rb 218 in `initialize_server'
8 /root/source/passenger/lib/passenger/application_spawner.rb 230 in `report_app_init_status'
9 /root/source/passenger/lib/passenger/application_spawner.rb 209 in `initialize_server'
10 /root/source/passenger/lib/passenger/abstract_server.rb 155 in `start_synchronously'
11 /root/source/passenger/lib/passenger/abstract_server.rb 124 in `start'
12 /root/source/passenger/lib/passenger/abstract_server.rb 111 in `fork'
13 /root/source/passenger/lib/passenger/abstract_server.rb 111 in `start'
14 /root/source/passenger/lib/passenger/application_spawner.rb 185 in `start'
15 /root/source/passenger/lib/passenger/framework_spawner.rb 271 in `handle_spawn_application'
16 /root/source/passenger/lib/passenger/framework_spawner.rb 264 in `synchronize'
17 /root/source/passenger/lib/passenger/framework_spawner.rb 264 in `handle_spawn_application'
18 /root/source/passenger/lib/passenger/abstract_server.rb 306 in `__send__'
19 /root/source/passenger/lib/passenger/abstract_server.rb 306 in `main_loop'
20 /root/source/passenger/lib/passenger/abstract_server.rb 157 in `start_synchronously'
21 /root/source/passenger/lib/passenger/abstract_server.rb 124 in `start'
22 /root/source/passenger/lib/passenger/abstract_server.rb 111 in `fork'
23 /root/source/passenger/lib/passenger/abstract_server.rb 111 in `start'
24 /root/source/passenger/lib/passenger/framework_spawner.rb 88 in `start'
25 /root/source/passenger/lib/passenger/spawn_manager.rb 125 in `spawn_application'
26 /root/source/passenger/lib/passenger/spawn_manager.rb 120 in `synchronize'
27 /root/source/passenger/lib/passenger/spawn_manager.rb 120 in `spawn_application'
28 /root/source/passenger/lib/passenger/spawn_manager.rb 211 in `handle_spawn_application'
29 /root/source/passenger/lib/passenger/abstract_server.rb 306 in `__send__'
30 /root/source/passenger/lib/passenger/abstract_server.rb 306 in `main_loop'
31 /root/source/passenger/lib/passenger/abstract_server.rb 157 in `start_synchronously'
32 /root/source/passenger/bin/passenger-spawn-server 44