摘要：
https://github.com/thoughtbot/shoulda-matchers加了gem 'shoulda-matchers', '~> 3.0'，报错是因为没有配置spec/rails_helper.rb，详细内容在上面连接里的configuration里Shoulda::Match... 阅读全文
摘要：
http://stackoverflow.com/questions/5286117/incompatible-character-encodings-ascii-8bit-and-utf-8http://stackoverflow.com/questions/22932282/gemloaderr... 阅读全文