/*
Error: Undefined mixin 'big'.
        on line 27 of home.scss, in `big'
        from line 27 of home.scss

22: #cols{overflow:hidden;margin:12px 0 0;}
23: #cols div.block{float:left;margin-left:28px;width:308px;clear:none;padding-bottom:70px;position:relative;}
24: #cols a.button{position:absolute;left:50%;margin-left:-32px;bottom:0px;}
25: #cols div.block:first-child{margin:0;}
26: 
27: @include big{
28:   body{background-image:url(img/top_home.png);}
29: }

Backtrace:
home.scss:27:in `big'
home.scss:27
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/perform.rb:349:in `block in visit_mixin'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/stack.rb:98:in `block in with_mixin'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/stack.rb:115:in `with_frame'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/stack.rb:98:in `with_mixin'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/perform.rb:347:in `visit_mixin'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/base.rb:36:in `visit'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/perform.rb:158:in `block in visit'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/stack.rb:79:in `block in with_base'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/stack.rb:115:in `with_frame'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/stack.rb:79:in `with_base'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/perform.rb:158:in `visit'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/base.rb:52:in `block in visit_children'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/base.rb:52:in `map'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/base.rb:52:in `visit_children'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/perform.rb:167:in `block in visit_children'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/perform.rb:179:in `with_environment'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/perform.rb:166:in `visit_children'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/base.rb:36:in `block in visit'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/perform.rb:186:in `visit_root'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/base.rb:36:in `visit'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/perform.rb:157:in `visit'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/visitors/perform.rb:8:in `visit'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/root_node.rb:36:in `css_tree'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/tree/root_node.rb:29:in `render_with_sourcemap'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/engine.rb:378:in `_render_with_sourcemap'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/engine.rb:295:in `render_with_sourcemap'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/plugin/compiler.rb:490:in `update_stylesheet'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/plugin/compiler.rb:215:in `block in update_stylesheets'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/plugin/compiler.rb:209:in `each'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/plugin/compiler.rb:209:in `update_stylesheets'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/plugin.rb:82:in `update_stylesheets'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/exec/sass_scss.rb:364:in `watch_or_update'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/exec/sass_scss.rb:51:in `process_result'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/exec/base.rb:52:in `parse'
/var/lib/gems/2.1.0/gems/sass-3.4.18/lib/sass/exec/base.rb:19:in `parse!'
/var/lib/gems/2.1.0/gems/sass-3.4.18/bin/scss:13:in `<top (required)>'
/usr/local/bin/scss:23:in `load'
/usr/local/bin/scss:23:in `<main>'
*/
body:before {
  white-space: pre;
  font-family: monospace;
  content: "Error: Undefined mixin 'big'.\A         on line 27 of home.scss, in `big'\A         from line 27 of home.scss\A \A 22: #cols{overflow:hidden;margin:12px 0 0;}\A 23: #cols div.block{float:left;margin-left:28px;width:308px;clear:none;padding-bottom:70px;position:relative;}\A 24: #cols a.button{position:absolute;left:50%;margin-left:-32px;bottom:0px;}\A 25: #cols div.block:first-child{margin:0;}\A 26: \A 27: @include big{\A 28:   body{background-image:url(img/top_home.png);}\A 29: }"; }