Asset Pipeline Undefined Variable SASS

I've been trying to use http://startbootstrap.com/stylish-portfolio and after downloading all files and copying to the directory I'm getting the following error on the partial _bordered-pull: ``` ActionView::Template::Error (Undefined variable: "$fa-css-prefix". ``` However the variable is defined and I'm importing (or at least trying) the partial. My assets/stylesheets directory is the following: ``` --application.css.scss --bootstrap.css.scss --font-awesome.css.scss.erb --stylish-portfolio.css.scss --|font-awesome --_bordered-pulled.css.scss --...(other partials) --font-awesome.css.scss ``` Application.css.scss: ``` /* * This is a manifest file that'll be compiled into application.css, which will include all the files * listed below. * * Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets, * or vendor/assets/stylesheets of plugins, if any, can be referenced here using a relative path. * * You're free to add application-wide styles to this file and they'll appear at the top of the * compiled file, but it's generally better to create a new file per style scope. * *= require_self *= require_tree . */ @import 'font-awesome/font-awesome'; @import 'bootstrap'; @import 'font-awesome'; @import 'stylish-portfolio'; ``` Font-awesome.css.scss ``` /*! * Font Awesome 4.0.3 by @davegandy - http://fontawesome.io - @fontawesome * License - http://fontawesome.io/license (Font: SIL OFL 1.1, CSS: MIT License) */ @import "variables"; @import "mixins"; @import "path"; @import "core"; @import "larger"; @import "fixed-width"; @import "list"; @import "bordered-pulled"; @import "spinning"; @import "rotated-flipped"; @import "stacked"; @import "icons"; ``` _bordered-pulled.css.scss ``` // Bordered & Pulled // ------------------------- .#{$fa-css-prefix}-border { padding: .2em .25em .15em; border: solid .08em $fa-border-color; border-radius: .1em; } .pull-right { float: right; } .pull-left { float: left; } .#{$fa-css-prefix} { &.pull-left { margin-right: .3em; } &.pull-right { margin-left: .3em; } } ``` Is it a syntax error or did I setup my asset pipeline wrong? _variable.css.scss https://github.com/IronSummitMedia/startbootstrap/blob/master/templates/stylish-portfolio/font-awesome/scss/_variables.scss