gem #查看gem源 gem sources # 删除默认的gem源 gem sources --remove http://rubygems.org/ # 增加taobao作为gem源 gem sources -a http://ruby.taobao.org/ # 查看当前的gem源 gem sources *** CURRENT SOURCES *** http://ruby.taobao.org # 请确保只有 ruby.taobao.org # 清空源缓存 gem sources -c # 更新源缓存 gem sources -u