我使用他们的入门页面上的步骤安装了 zurb-foundation 和 sass，例如
[sudo] gem install compass
cd path/to/where-you-want-your-project
run compass create <project-name> -r zurb-foundation --using foundation
但现在我想恢复到 bootstrap，但我无法从我的 Padrino 项目中摆脱 zurb-foundation。即使在运行gem uninstall zurb-foundation并检查项目中的每个文件以获取对“zurb”或“foundation”的引用之后，捆绑程序也会提醒我 zurb 丢失并且每次运行bundle install时都会将其添加到项目中。
从我的 Padrino 应用程序中删除 zurb-foundation 的最佳方法是什么？谢谢
我的 Gemfile 是
source 'https://rubygems.org'
# Distribute your app as a gem
# gemspec
# Server requirements
# gem 'thin' # or mongrel
# gem 'trinidad', :platform => 'jruby'
# Optional JSON codec (faster performance)
# gem 'oj'
# Project requirements
gem 'rake'
# Component requirements
gem 'bcrypt-ruby', :require => 'bcrypt'
gem 'sass'
gem 'haml'
gem 'activerecord', '>= 3.1', :require => 'active_record'
gem 'mysql2'
gem 'json'
gem 'annotate'
gem 'compass'
gem 'bootstrap-sass', '~> 2.3.1.2'
# gem 'activerecord-mysql2-adapter'
# Test requirements
gem 'shoulda', :group => 'test'
gem 'rack-test', :require => 'rack/test', :group => 'test'
# Padrino Stable Gem
gem 'padrino', '~> 0.11.1'
#rabl needs to be after padrino
gem 'rabl'
# Or Padrino Edge
# gem 'padrino', :github => 'padrino/padrino-framework'
# Or Individual Gems
# %w(core gen helpers cache mailer admin).each do |g|
# gem 'padrino-' + g, '0.11.1'
# end