/*
Error: Undefined variable: "$bootstrap-sass-asset-helper".
        on line 13 of sass/bootstrap/glyphicons.scss

8: // <a href="#"><span class="glyphicon glyphicon-star"></span> Star</a>
9: 
10: // Import the fonts
11: @font-face {
12:   font-family: 'Glyphicons Halflings';
13:   src: url(if($bootstrap-sass-asset-helper, twbs-font-path('#{$icon-font-path}#{$icon-font-name}.eot'), '#{$icon-font-path}#{$icon-font-name}.eot'));
14:   src: url(if($bootstrap-sass-asset-helper, twbs-font-path('#{$icon-font-path}#{$icon-font-name}.eot?#iefix'), '#{$icon-font-path}#{$icon-font-name}.eot?#iefix')) format('embedded-opentype'),
15:        url(if($bootstrap-sass-asset-helper, twbs-font-path('#{$icon-font-path}#{$icon-font-name}.woff'), '#{$icon-font-path}#{$icon-font-name}.woff')) format('woff'),
16:        url(if($bootstrap-sass-asset-helper, twbs-font-path('#{$icon-font-path}#{$icon-font-name}.ttf'), '#{$icon-font-path}#{$icon-font-name}.ttf')) format('truetype'),
17:        url(if($bootstrap-sass-asset-helper, twbs-font-path('#{$icon-font-path}#{$icon-font-name}.svg##{$icon-font-svg-id}'), '#{$icon-font-path}#{$icon-font-name}.svg##{$icon-font-svg-id}')) format('svg');
18: }

Backtrace:
sass/bootstrap/glyphicons.scss:13
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/variable.rb:49:in `_perform'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/node.rb:50:in `perform'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:170:in `perform_arg'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:124:in `block in _perform'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:124:in `each'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:124:in `each_with_index'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:124:in `each'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:124:in `map'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:124:in `_perform'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/node.rb:50:in `perform'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:170:in `perform_arg'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:124:in `block in _perform'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:124:in `each'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:124:in `each_with_index'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:124:in `each'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:124:in `map'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/funcall.rb:124:in `_perform'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/script/tree/node.rb:50:in `perform'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:384:in `visit_prop'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/base.rb:36:in `visit'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/stack.rb:79:in `block in with_base'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/stack.rb:115:in `with_frame'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/stack.rb:79:in `with_base'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:158:in `visit'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:491:in `block (2 levels) in visit_directive'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:491:in `map'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:491:in `block in visit_directive'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:490:in `visit_directive'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/base.rb:36:in `visit'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/stack.rb:79:in `block in with_base'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/stack.rb:115:in `with_frame'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/stack.rb:79:in `with_base'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:158:in `visit'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/base.rb:52:in `block in visit_children'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/base.rb:52:in `map'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/base.rb:52:in `visit_children'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:167:in `block in visit_children'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:166:in `visit_children'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/base.rb:36:in `block in visit'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:186:in `visit_root'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/base.rb:36:in `visit'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:157:in `visit'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:8:in `visit'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/root_node.rb:36:in `css_tree'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/root_node.rb:29:in `render_with_sourcemap'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/engine.rb:368:in `_render_with_sourcemap'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/engine.rb:285:in `render_with_sourcemap'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/plugin/compiler.rb:489:in `update_stylesheet'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/plugin/compiler.rb:215:in `block in update_stylesheets'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/plugin/compiler.rb:209:in `each'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/plugin/compiler.rb:209:in `update_stylesheets'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/plugin/compiler.rb:293:in `watch'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/plugin.rb:108:in `method_missing'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/exec/sass_scss.rb:370:in `watch_or_update'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/exec/sass_scss.rb:50:in `process_result'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/exec/base.rb:52:in `parse'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/exec/base.rb:19:in `parse!'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/bin/sass:13:in `<top (required)>'
/usr/bin/sass:23:in `load'
/usr/bin/sass:23:in `<main>'
*/
body:before {
  white-space: pre;
  font-family: monospace;
  content: "Error: Undefined variable: \"$bootstrap-sass-asset-helper\".\A         on line 13 of sass/bootstrap/glyphicons.scss\A \A 8: // <a href=\"#\"><span class=\"glyphicon glyphicon-star\"></span> Star</a>\A 9: \A 10: // Import the fonts\A 11: @font-face {\A 12:   font-family: 'Glyphicons Halflings';\A 13:   src: url(if($bootstrap-sass-asset-helper, twbs-font-path('#{$icon-font-path}#{$icon-font-name}.eot'), '#{$icon-font-path}#{$icon-font-name}.eot'));\A 14:   src: url(if($bootstrap-sass-asset-helper, twbs-font-path('#{$icon-font-path}#{$icon-font-name}.eot?#iefix'), '#{$icon-font-path}#{$icon-font-name}.eot?#iefix')) format('embedded-opentype'),\A 15:        url(if($bootstrap-sass-asset-helper, twbs-font-path('#{$icon-font-path}#{$icon-font-name}.woff'), '#{$icon-font-path}#{$icon-font-name}.woff')) format('woff'),\A 16:        url(if($bootstrap-sass-asset-helper, twbs-font-path('#{$icon-font-path}#{$icon-font-name}.ttf'), '#{$icon-font-path}#{$icon-font-name}.ttf')) format('truetype'),\A 17:        url(if($bootstrap-sass-asset-helper, twbs-font-path('#{$icon-font-path}#{$icon-font-name}.svg##{$icon-font-svg-id}'), '#{$icon-font-path}#{$icon-font-name}.svg##{$icon-font-svg-id}')) format('svg');\A 18: }"; }
