File to import not found or unreadable: bootstrap.

Created by: purwandi

My production.log,

Started GET "/users/sign_in" for 10.211.55.2 at 2012-06-22 16:59:01 +0700
Processing by Devise::SessionsController#new as HTML
  Rendered devise/shared/_links.erb (1.0ms)
  Rendered devise/sessions/new.html.erb within layouts/devise (50.9ms)
  Rendered layouts/_head.html.haml (955.3ms)
Completed 500 Internal Server Error in 1172ms

ActionView::Template::Error (File to import not found or unreadable: bootstrap.
Load path: /home/gitlab/gitlab
  (in /home/gitlab/gitlab/app/assets/stylesheets/main.scss)):
    4:     GitLab
    5:     = " > #{@project.name}" if @project && !@project.new_record?
    6:   = favicon_link_tag 'favicon.ico'
    7:   = stylesheet_link_tag    "application"
    8:   = javascript_include_tag "application"
    9: 
    10:   -# Atom feed
  app/assets/stylesheets/main.scss:1
  app/views/layouts/_head.html.haml:7:in `_app_views_layouts__head_html_haml___871850172_98975450'
  app/views/layouts/devise.html.haml:3:in `_app_views_layouts_devise_html_haml__385178761_98332300'

Gitlab 2.6 > Stable Branch