Ruby on Rails application could not be started

A source file that the application requires, is missing.

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• A required library may not installed. Please install all libraries that this application requires.

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:

no such file to load -- iconv (MissingSourceFile)

Exception class:

Passenger::UnknownError

Application root:

/home/app/apps/rails_weblog/releases/20070118210809

Backtrace:

#	File	Line	Location
0	/opt/ruby-enterprise-1.8.6-20080709/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb	27	in `gem_original_require'
1	/opt/ruby-enterprise-1.8.6-20080709/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb	27	in `require'
2	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	496	in `require'
3	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	343	in `new_constants_in'
4	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	496	in `require'
5	/home/app/apps/rails_weblog/releases/20070118210809/vendor/plugins/permalink_fu/lib/permalink_fu.rb	1
6	/opt/ruby-enterprise-1.8.6-20080709/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb	27	in `gem_original_require'
7	/opt/ruby-enterprise-1.8.6-20080709/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb	27	in `require'
8	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	496	in `require'
9	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	343	in `new_constants_in'
10	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	496	in `require'
11	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	105	in `require_or_load'
12	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	249	in `load_missing_constant'
13	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	453	in `const_missing'
14	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	465	in `const_missing'
15	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	261	in `load_missing_constant'
16	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	453	in `const_missing'
17	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	261	in `load_missing_constant'
18	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	469	in `const_missing'
19	/home/app/apps/rails_weblog/releases/20070118210809/vendor/plugins/permalink_fu/init.rb	1	in `load_plugin'
20	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/railties/lib/initializer.rb	401	in `load_plugin'
21	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/core_ext/kernel/reporting.rb	11	in `silence_warnings'
22	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/railties/lib/initializer.rb	401	in `load_plugin'
23	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/railties/lib/initializer.rb	185	in `load_plugins'
24	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/railties/lib/initializer.rb	185	in `each'
25	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/railties/lib/initializer.rb	185	in `load_plugins'
26	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/railties/lib/initializer.rb	105	in `process'
27	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/railties/lib/initializer.rb	43	in `send'
28	/home/app/apps/rails_weblog/releases/20070118210809/vendor/rails/railties/lib/initializer.rb	43	in `run'
29	./config/environment.rb	16
30	/opt/ruby-enterprise-1.8.6-20080709/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb	27	in `gem_original_require'
31	/opt/ruby-enterprise-1.8.6-20080709/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb	27	in `require'
32	/opt/passenger/lib/passenger/railz/application_spawner.rb	263	in `preload_application'
33	/opt/passenger/lib/passenger/railz/application_spawner.rb	223	in `initialize_server'
34	/opt/passenger/lib/passenger/utils.rb	186	in `report_app_init_status'
35	/opt/passenger/lib/passenger/railz/application_spawner.rb	211	in `initialize_server'
36	/opt/passenger/lib/passenger/abstract_server.rb	180	in `start_synchronously'
37	/opt/passenger/lib/passenger/abstract_server.rb	149	in `start'
38	/opt/passenger/lib/passenger/abstract_server.rb	126	in `fork'
39	/opt/passenger/lib/passenger/abstract_server.rb	126	in `start'
40	/opt/passenger/lib/passenger/railz/application_spawner.rb	187	in `start'
41	/opt/passenger/lib/passenger/spawn_manager.rb	270	in `spawn_rails_application'
42	/opt/passenger/lib/passenger/abstract_server_collection.rb	118	in `lookup_or_add'
43	/opt/passenger/lib/passenger/spawn_manager.rb	264	in `spawn_rails_application'
44	/opt/passenger/lib/passenger/abstract_server_collection.rb	74	in `synchronize'
45	/opt/passenger/lib/passenger/abstract_server_collection.rb	73	in `synchronize'
46	/opt/passenger/lib/passenger/spawn_manager.rb	263	in `spawn_rails_application'
47	/opt/passenger/lib/passenger/spawn_manager.rb	158	in `spawn_application'
48	/opt/passenger/lib/passenger/spawn_manager.rb	300	in `handle_spawn_application'
49	/opt/passenger/lib/passenger/abstract_server.rb	332	in `__send__'
50	/opt/passenger/lib/passenger/abstract_server.rb	332	in `main_loop'
51	/opt/passenger/lib/passenger/abstract_server.rb	182	in `start_synchronously'
52	/opt/passenger/bin/passenger-spawn-server	46