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:

RubyGem version error: actionpack(2.0.2 not = 1.13.6)

Exception class:

Gem::LoadError

Application root:

/home/.natalia/remix/remixtechnology.com

Backtrace:

#	File	Line	Location
0	/usr/local/lib/site_ruby/1.8/rubygems.rb	628	in `report_activate_error'
1	/usr/local/lib/site_ruby/1.8/rubygems.rb	139	in `activate'
2	/usr/local/lib/site_ruby/1.8/rubygems.rb	163	in `activate'
3	/usr/local/lib/site_ruby/1.8/rubygems.rb	162	in `each'
4	/usr/local/lib/site_ruby/1.8/rubygems.rb	162	in `activate'
5	/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb	31	in `require'
6	/home/.natalia/remix/remixtechnology.com/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	495	in `require'
7	/home/.natalia/remix/remixtechnology.com/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	342	in `new_constants_in'
8	/home/.natalia/remix/remixtechnology.com/vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb	495	in `require'
9	/home/.natalia/remix/remixtechnology.com/vendor/rails/railties/lib/initializer.rb	166	in `require_frameworks'
10	/home/.natalia/remix/remixtechnology.com/vendor/rails/railties/lib/initializer.rb	166	in `each'
11	/home/.natalia/remix/remixtechnology.com/vendor/rails/railties/lib/initializer.rb	166	in `require_frameworks'
12	/home/.natalia/remix/remixtechnology.com/vendor/rails/railties/lib/initializer.rb	87	in `process'
13	/home/.natalia/remix/remixtechnology.com/vendor/rails/railties/lib/initializer.rb	47	in `send'
14	/home/.natalia/remix/remixtechnology.com/vendor/rails/railties/lib/initializer.rb	47	in `run'
15	./config/environment.rb	16
16	/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb	27	in `gem_original_require'
17	/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb	27	in `require'
18	/dh/passenger/lib/passenger/railz/application_spawner.rb	252	in `preload_application'
19	/dh/passenger/lib/passenger/railz/application_spawner.rb	212	in `initialize_server'
20	/dh/passenger/lib/passenger/utils.rb	181	in `report_app_init_status'
21	/dh/passenger/lib/passenger/railz/application_spawner.rb	201	in `initialize_server'
22	/dh/passenger/lib/passenger/abstract_server.rb	166	in `start_synchronously'
23	/dh/passenger/lib/passenger/abstract_server.rb	135	in `start'
24	/dh/passenger/lib/passenger/abstract_server.rb	112	in `fork'
25	/dh/passenger/lib/passenger/abstract_server.rb	112	in `start'
26	/dh/passenger/lib/passenger/railz/application_spawner.rb	177	in `start'
27	/dh/passenger/lib/passenger/spawn_manager.rb	218	in `spawn_rails_application'
28	/dh/passenger/lib/passenger/spawn_manager.rb	213	in `synchronize'
29	/dh/passenger/lib/passenger/spawn_manager.rb	213	in `spawn_rails_application'
30	/dh/passenger/lib/passenger/spawn_manager.rb	122	in `spawn_application'
31	/dh/passenger/lib/passenger/spawn_manager.rb	247	in `handle_spawn_application'
32	/dh/passenger/lib/passenger/abstract_server.rb	317	in `__send__'
33	/dh/passenger/lib/passenger/abstract_server.rb	317	in `main_loop'
34	/dh/passenger/lib/passenger/abstract_server.rb	168	in `start_synchronously'
35	/dh/passenger/bin/passenger-spawn-server	46