Rails + Slim - MissingTemplate (in production) - ruby-on-rails-3

Question

I have a project on Rails 3.2. Also i used haml as my template engine but i decided to use slim instead of haml. So i rewrite some views using slim. But when i pushed this changes to server i got strange error in production.
The error appears ONLY on pages which use slim as a template engine. On my development machine pages open great. To setup server i used Rayan Byte's screencast
How can i fix that?
Error:
Started GET "/" for 128.69.76.116 at 2013-04-12 11:19:31 +0000
Started GET "/ru/articles" for 128.69.76.116 at 2013-04-12 11:19:31 +0000
Processing by ArticlesController#index as HTML
Parameters: {"locale"=>"ru"}
Completed 500 Internal Server Error in 180ms
ActionView::MissingTemplate (Missing template articles/index, application/index with {:locale=>[:ru], :formats=>[:html], :handlers=>[:erb, :builder, :haml]}. Searched in:
* "/home/deployer/apps/Chirch_app/releases/20130412101936/app/views"
* "/home/deployer/apps/Chirch_app/shared/bundle/ruby/1.9.1/gems/gmaps4rails-1.5.6/app/views"
* "/home/deployer/apps/Chirch_app/shared/bundle/ruby/1.9.1/gems/kaminari-0.14.0/app/views"
* "/home/deployer/apps/Chirch_app/shared/bundle/ruby/1.9.1/gems/devise-2.1.2/app/views"
):
actionpack (3.2.8) lib/action_view/path_set.rb:58:in `find'
actionpack (3.2.8) lib/action_view/lookup_context.rb:109:in `find'
actionpack (3.2.8) lib/action_view/renderer/abstract_renderer.rb:3:in `find_template'
actionpack (3.2.8) lib/action_view/renderer/template_renderer.rb:34:in `determine_template'
actionpack (3.2.8) lib/action_view/renderer/template_renderer.rb:10:in `render'
actionpack (3.2.8) lib/action_view/renderer/renderer.rb:36:in `render_template'
actionpack (3.2.8) lib/action_view/renderer/renderer.rb:17:in `render'
actionpack (3.2.8) lib/abstract_controller/rendering.rb:110:in `_render_template'
actionpack (3.2.8) lib/action_controller/metal/streaming.rb:225:in `_render_template'
actionpack (3.2.8) lib/abstract_controller/rendering.rb:103:in `render_to_body'
actionpack (3.2.8) lib/action_controller/metal/renderers.rb:28:in `render_to_body'
actionpack (3.2.8) lib/action_controller/metal/compatibility.rb:50:in `render_to_body'
actionpack (3.2.8) lib/abstract_controller/rendering.rb:88:in `render'
actionpack (3.2.8) lib/action_controller/metal/rendering.rb:16:in `render'
actionpack (3.2.8) lib/action_controller/metal/instrumentation.rb:40:in `block (2 levels) in render'
activesupport (3.2.8) lib/active_support/core_ext/benchmark.rb:5:in `block in ms'
/home/deployer/.rbenv/versions/1.9.3-p194/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
activesupport (3.2.8) lib/active_support/core_ext/benchmark.rb:5:in `ms'
actionpack (3.2.8) lib/action_controller/metal/instrumentation.rb:40:in `block in render'
actionpack (3.2.8) lib/action_controller/metal/instrumentation.rb:83:in `cleanup_view_runtime'
activerecord (3.2.8) lib/active_record/railties/controller_runtime.rb:24:in `cleanup_view_runtime'
actionpack (3.2.8) lib/action_controller/metal/instrumentation.rb:39:in `render'
actionpack (3.2.8) lib/action_controller/metal/implicit_render.rb:10:in `default_render'
actionpack (3.2.8) lib/action_controller/metal/implicit_render.rb:5:in `send_action'
actionpack (3.2.8) lib/abstract_controller/base.rb:167:in `process_action'
actionpack (3.2.8) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (3.2.8) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.2.8) lib/active_support/callbacks.rb:436:in `_run__609582508__process_action__934117167__callbacks'
activesupport (3.2.8) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.8) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
activesupport (3.2.8) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.8) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.2.8) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (3.2.8) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.2.8) lib/active_support/notifications.rb:123:in `block in instrument'
activesupport (3.2.8) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (3.2.8) lib/active_support/notifications.rb:123:in `instrument'
actionpack (3.2.8) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.2.8) lib/action_controller/metal/params_wrapper.rb:207:in `process_action'
activerecord (3.2.8) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (3.2.8) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.2.8) lib/abstract_controller/rendering.rb:45:in `process'
actionpack (3.2.8) lib/action_controller/metal.rb:203:in `dispatch'
actionpack (3.2.8) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.2.8) lib/action_controller/metal.rb:246:in `block in action'
actionpack (3.2.8) lib/action_dispatch/routing/route_set.rb:73:in `call'
actionpack (3.2.8) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
actionpack (3.2.8) lib/action_dispatch/routing/route_set.rb:36:in `call'
journey (1.0.4) lib/journey/router.rb:68:in `block in call'
journey (1.0.4) lib/journey/router.rb:56:in `each'
journey (1.0.4) lib/journey/router.rb:56:in `call'
actionpack (3.2.8) lib/action_dispatch/routing/route_set.rb:600:in `call'
warden (1.2.1) lib/warden/manager.rb:35:in `block in call'
warden (1.2.1) lib/warden/manager.rb:34:in `catch'
warden (1.2.1) lib/warden/manager.rb:34:in `call'
actionpack (3.2.8) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.4.4) lib/rack/etag.rb:23:in `call'
rack (1.4.4) lib/rack/conditionalget.rb:25:in `call'
actionpack (3.2.8) lib/action_dispatch/middleware/head.rb:14:in `call'
actionpack (3.2.8) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.2.8) lib/action_dispatch/middleware/flash.rb:242:in `call'
rack (1.4.4) lib/rack/session/abstract/id.rb:210:in `context'
rack (1.4.4) lib/rack/session/abstract/id.rb:205:in `call'
actionpack (3.2.8) lib/action_dispatch/middleware/cookies.rb:339:in `call'
activerecord (3.2.8) lib/active_record/query_cache.rb:64:in `call'
activerecord (3.2.8) lib/active_record/connection_adapters/abstract/connection_pool.rb:473:in `call'
actionpack (3.2.8) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
activesupport (3.2.8) lib/active_support/callbacks.rb:405:in `_run__319658905__call__322020128__callbacks'
activesupport (3.2.8) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.8) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
activesupport (3.2.8) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.8) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (3.2.8) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
actionpack (3.2.8) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
actionpack (3.2.8) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.8) lib/rails/rack/logger.rb:26:in `call_app'
railties (3.2.8) lib/rails/rack/logger.rb:16:in `call'
actionpack (3.2.8) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.4) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.4) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.8) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.4) lib/rack/lock.rb:15:in `call'
rack-cache (1.2) lib/rack/cache/context.rb:136:in `forward'
rack-cache (1.2) lib/rack/cache/context.rb:245:in `fetch'
rack-cache (1.2) lib/rack/cache/context.rb:185:in `lookup'
rack-cache (1.2) lib/rack/cache/context.rb:66:in `call!'
rack-cache (1.2) lib/rack/cache/context.rb:51:in `call'
railties (3.2.8) lib/rails/engine.rb:479:in `call'
railties (3.2.8) lib/rails/application.rb:223:in `call'
railties (3.2.8) lib/rails/railtie/configurable.rb:30:in `method_missing'
unicorn (4.5.0) lib/unicorn/http_server.rb:552:in `process_client'
unicorn (4.5.0) lib/unicorn/http_server.rb:628:in `worker_loop'
unicorn (4.5.0) lib/unicorn/http_server.rb:500:in `spawn_missing_workers'
unicorn (4.5.0) lib/unicorn/http_server.rb:511:in `maintain_worker_count'
unicorn (4.5.0) lib/unicorn/http_server.rb:277:in `join'
unicorn (4.5.0) bin/unicorn:121:in `<top (required)>'
/home/deployer/apps/Chirch_app/shared/bundle/ruby/1.9.1/bin/unicorn:23:in `load'
/home/deployer/apps/Chirch_app/shared/bundle/ruby/1.9.1/bin/unicorn:23:in `<main>'
Gemfile:
source 'https://rubygems.org'
gem 'rails', '3.2.13'
gem 'pg', '0.15.1'
gem 'jquery-rails', '2.2.1'
gem 'haml', '4.0.2'
gem 'therubyracer', :platform => :ruby
gem 'devise', '2.2.3'
gem 'simple_form', '2.1.0'
gem 'bootstrap-wysihtml5-rails', "0.3.1.19"
gem 'kaminari', '0.14.0'
gem "cancan", '1.6.9'
gem "carrierwave", '0.8.0'
gem "rmagick", '2.13.2'
gem 'gmaps4rails', '1.5.6'
gem 'unicorn', '4.6.2'
gem 'capistrano', '2.14.2'
gem 'less-rails', '2.3.2'
gem 'slim', '1.3.8'
gem 'haml2slim'
group :assets do
gem 'sass-rails', '~> 3.2.4'
gem 'coffee-rails', '~> 3.2.2'
gem 'twitter-bootstrap-rails', '2.2.6'
gem 'uglifier', '>= 1.2.3'
end
group :development do
gem 'annotate', '~> 2.5.0'
gem 'better_errors'
gem 'binding_of_caller'
gem 'brakeman'
gem 'meta_request'
end
group :development, :test do
gem 'rspec-rails', '2.13.0'
gem 'rb-fsevent'
gem 'guard-rspec', '2.5.2'
gem 'terminal-notifier-guard'
gem 'launchy'
end
group :test do
gem 'capybara', '2.1.0'
gem 'factory_girl_rails', '4.2.1'
gem 'database_cleaner', '0.9.1'
gem 'selenium-webdriver', '2.32.1'
end

Answer 1

I found the problem. After a long time of researching (unicorn and ngingx restarts didn't help) i just rebooted the whole Operating System and after that Slim page appeared.

Answer 2

Look at the error, the template handle is still haml
:formats=>[:html], :handlers=>[:erb, :builder, :haml]}
My guess is you index page includes some partial written in haml, thus brings the confuse. The local development machine may have some cache in browser thus no problem there.
How about your turn all haml template into slim, delete all haml templates(use git rm), remove haml gem from Gemfile, and try again?