我正在尝试按照以下说明将我的博客迁移到Jekyll：http://jekyllrb.com/docs/migrations/
我的所有帖子都是.xml格式，但转换它们的命令似乎不起作用：
ruby -rubygems -e 'require "jekyll/jekyll-import/wordpressdotcom";
JekyllImport::WordpressDotCom.process({ :source => "wordpress.xml" })'
/home/robin/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- hpricot (LoadError)
from /home/robin/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /home/robin/.rvm/gems/ruby-1.9.3-p448/gems/jekyll-import-0.1.0.beta3/lib/jekyll/jekyll-import/wordpressdotcom.rb:4:in `'
from /home/robin/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:in `require'
from /home/robin/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:in `rescue in require'
from /home/robin/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:35:in `require'
from -e:1:in `'
我想这是因为没有安装Hpricot（gem list没有显示它，即使我用gem install安装它也没有）。它也可能是一个Ruby版本问题（因此多个“from”行ruby -v告诉我它是ruby 1.9.3p448。
非常感谢您的帮助