rmagick not found

App failed to start

/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack.rb:17: warning: already initialized constant VERSION
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin/loader.rb:184:in `ensure_all_registered_plugins_are_loaded!': Could not locate the following plugins: community_engine and white_list (LoadError)
	from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin/loader.rb:44:in `load_plugins'
	from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:348:in `load_plugins'
	from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:163:in `process'
	from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:113:in `send'
	from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:113:in `run'
	from /disk1/home/slugs/12838_f2b2289_c549/mnt/config/environment.rb:11
	from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
	from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
	 ... 13 levels...
	from /usr/local/lib/ruby/gems/1.8/gems/rack-0.9.1/lib/rack/builder.rb:29:in `instance_eval'
	from /usr/local/lib/ruby/gems/1.8/gems/rack-0.9.1/lib/rack/builder.rb:29:in `initialize'
	from /home/heroku_rack/heroku.ru:1:in `new'
	from /home/heroku_rack/heroku.ru:1
no such file to load -- rmagick
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:158:in `require_without_desert'
/home/slugs/12838_f2b2289_c549/mnt/.gems/gems/desert-0.5.0/lib/desert/ruby/object.rb:8:in `require'
/home/slugs/12838_f2b2289_c549/mnt/.gems/gems/desert-0.5.0/lib/desert/ruby/object.rb:32:in `__each_matching_file'
/home/slugs/12838_f2b2289_c549/mnt/.gems/gems/desert-0.5.0/lib/desert/ruby/object.rb:7:in `require'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/gem_dependency.rb:179:in `load'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:305:in `load_gems'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:305:in `each'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:305:in `load_gems'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:162:in `process'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:113:in `send'
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:113:in `run'
/disk1/home/slugs/12838_f2b2289_c549/mnt/config/environment.rb:11
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
/usr/local/lib/ruby/gems/1.8/gems/thin-1.0.1/lib/rack/adapter/rails.rb:31:in `load_application'
/usr/local/lib/ruby/gems/1.8/gems/thin-1.0.1/lib/rack/adapter/rails.rb:23:in `initialize'
/home/heroku_rack/heroku.ru:26:in `new'
/home/heroku_rack/heroku.ru:26
/usr/local/lib/ruby/gems/1.8/gems/rack-0.9.1/lib/rack/builder.rb:29:in `instance_eval'
/usr/local/lib/ruby/gems/1.8/gems/rack-0.9.1/lib/rack/builder.rb:29:in `initialize'
/usr/local/lib/ruby/gems/1.8/gems/rack-0.9.1/lib/rack/builder.rb:50:in `new'
/usr/local/lib/ruby/gems/1.8/gems/rack-0.9.1/lib/rack/builder.rb:50:in `map'
/home/heroku_rack/heroku.ru:12
/usr/local/lib/ruby/gems/1.8/gems/rack-0.9.1/lib/rack/builder.rb:29:in `instance_eval'
/usr/local/lib/ruby/gems/1.8/gems/rack-0.9.1/lib/rack/builder.rb:29:in `initialize'
/home/heroku_rack/heroku.ru:7:in `new'
/home/heroku_rack/heroku.ru:7
/usr/local/lib/ruby/gems/1.8/gems/rack-0.9.1/lib/rack/builder.rb:29:in `instance_eval'
/usr/local/lib/ruby/gems/1.8/gems/rack-0.9.1/lib/rack/builder.rb:29:in `initialize'
/home/heroku_rack/heroku.ru:1:in `new'
/home/heroku_rack/heroku.ru:1