/*
Error: Undefined mixin 'responsive-invisibility'.
        on line 29 of sass/bootstrap/responsive-utilities.scss, in `responsive-invisibility'
        from line 29 of sass/bootstrap/responsive-utilities.scss

24: 
25: 
26: // Visibility utilities
27: // Note: Deprecated .visible-xs, .visible-sm, .visible-md, and .visible-lg as of v3.2.0
28: 
29: @include responsive-invisibility('.visible-xs');
30: @include responsive-invisibility('.visible-sm');
31: @include responsive-invisibility('.visible-md');
32: @include responsive-invisibility('.visible-lg');
33: 
34: .visible-xs-block,

Backtrace:
sass/bootstrap/responsive-utilities.scss:29:in `responsive-invisibility'
sass/bootstrap/responsive-utilities.scss:29
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:338:in `block in visit_mixin'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/stack.rb:98:in `block in with_mixin'
/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:98:in `with_mixin'
/Library/Ruby/Gems/2.0.0/gems/sass-3.4.8/lib/sass/tree/visitors/perform.rb:336:in `visit_mixin'
/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 mixin 'responsive-invisibility'.\A         on line 29 of sass/bootstrap/responsive-utilities.scss, in `responsive-invisibility'\A         from line 29 of sass/bootstrap/responsive-utilities.scss\A \A 24: \A 25: \A 26: // Visibility utilities\A 27: // Note: Deprecated .visible-xs, .visible-sm, .visible-md, and .visible-lg as of v3.2.0\A 28: \A 29: @include responsive-invisibility('.visible-xs');\A 30: @include responsive-invisibility('.visible-sm');\A 31: @include responsive-invisibility('.visible-md');\A 32: @include responsive-invisibility('.visible-lg');\A 33: \A 34: .visible-xs-block,"; }
