Ruby on rails jekyll-v，带警告：Gem:：Specification.reset期间未解析的规范：

我想使用HPSTR jekyll主题，当我提供

jekyll服务时，终端抛出错误：

/Library/Ruby/Gems/2.0.0/gems/bundler-1.10.3/lib/bundler/spec_set.rb:92:in `block in materialize': Could not find coffee-script-source-1.9.1 in any of the sources (Bundler::GemNotFound)
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.10.3/lib/bundler/spec_set.rb:85:in `map!'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.10.3/lib/bundler/spec_set.rb:85:in `materialize'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.10.3/lib/bundler/definition.rb:139:in `specs'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.10.3/lib/bundler/definition.rb:184:in `specs_for'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.10.3/lib/bundler/definition.rb:173:in `requested_specs'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.10.3/lib/bundler/environment.rb:18:in `requested_specs'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.10.3/lib/bundler/runtime.rb:13:in `setup'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.10.3/lib/bundler.rb:127:in `setup'
    from /Library/Ruby/Gems/2.0.0/gems/jekyll-2.5.3/lib/jekyll/plugin_manager.rb:37:in `require_from_bundler'
    from /Library/Ruby/Gems/2.0.0/gems/jekyll-2.5.3/bin/jekyll:16:in `<top (required)>'
    from /usr/bin/jekyll:23:in `load'
    from /usr/bin/jekyll:23:in `<main>'

如何清除未解决的规范

我尝试了
gem cleanup pygments.rb
，
gem cleanup redrupt
，以及
gem cleanup listen
。这些命令运行良好，但jekyll-v的结果是相同的

我甚至尝试了
捆绑清理--force
，仍然得到了相同的警告

有人知道吗？非常感谢这对我很有效

git clone git@github.com:mmistakes/hpstr-jekyll-theme.git
cd hpstr-jekyll-theme/
rm Gemfile.lock
bundle install
bundle exec jekyll serve

git clone git@github.com:mmistakes/hpstr-jekyll-theme.git
cd hpstr-jekyll-theme/
rm Gemfile.lock
bundle install
bundle exec jekyll serve