An ActionView::Template::Error occurred in topics#show:

  cannot load such file -- html/tokenizer
  actionpack (3.2.8) lib/action_controller/vendor/html-scanner/html/sanitizer.rb:18:in `tokenize'

An ActionView::Template::Error occurred in posts#index:

  couldn't find file 'jquery'
  (in /opt/ruby_apps/bookdate-website/app/assets/javascripts/cpanel_app.coffee:1)
  sprockets (2.1.3) lib/sprockets/context.rb:100:in `resolve'

在 development 下几乎不会出现