Ruby on rails 在Rails中使用导入基础

在assets/stylesheets/application.css.scss中 我有这些台词

@import "compass/css3";

@import "foundation";

@import 'foundation-icons';

但是，

@import“foundation”

由于此错误而失败

Invalid CSS after "": expected media query list, was ""only screen an..."
  (in app/assets/stylesheets/application.css.scss:143)

这是我的档案

gem 'rails-dev-tweaks'
gem "compass-rails"
gem "zurb-foundation", '~> 4.0.0'
gem "foundation-icons-sass-rails"
gem 'bootstrap-sass-rails'

有什么问题？我在Windows 8.1上

您已经运行：

rails g foundation:install