bundle exec rake assets：precompile throws font-awesome相关问题

Question

我在执行bundle exec rake assets:precompile

时遇到错误

Here's完成错误我在终端上遇到上述命令。

这是我的 variables.less 代码段

@fa-font-path:        "assets/font-awesome/fonts";
@fa-css-prefix:       "fa";
@fa-version:          "4.2.0";
@fa-border-color:     #eee;
@fa-inverse:          #fff;
@fa-li-width:         (30em / 14);

这是 font-awesome.css 代码段

@font-face {
font-family: 'FontAwesome';
src: url('../fonts/fontawesome-webfont.eot?v=4.2.0');
src: url('../fonts/fontawesome-webfont.eot?#iefix&v=4.2.0') format('embedded-opentype'), url('../fonts/fontawesome-webfont.woff?  v=4.2.0') format('woff'), url('../fonts/fontawesome-webfont.ttf?v=4.2.0') format('truetype'), url('../fonts/fontawesome-webfont.svg?v=4.2.0#fontawesomeregular') format('svg');
font-weight: normal;
font-style: normal;
}

 .fa {
  display: inline-block;
  font: normal normal normal 14px/1 FontAwesome;
  font-size: inherit;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  }

无法弄清楚这个问题。有人可以帮助我。

由于