我测试了一下，貌似服务本身没问题，你用的哪个 gem？是不是还没有同步过来？

#1 楼 @fsword helios

helios 版本多少？gem install helios "版本号" -V 看看

#1 楼 @fsword helios 0.2.3

GET http://ruby.taobao.org/quick/Marshal.4.8/houston-0.2.4.gemspec.rz
404 Not Found
GET http://ruby.taobao.org/quick/Marshal.4.8/sequel-3.48.0.gemspec.rz
404 Not Found
GET http://ruby.taobao.org/quick/Marshal.4.8/sequel-3.48.0.gemspec.rz
404 Not Found
GET http://ruby.taobao.org/quick/Marshal.4.8/sequel-3.48.0.gemspec.rz
404 Not Found
GET http://ruby.taobao.org/quick/Marshal.4.8/sequel-3.48.0.gemspec.rz
404 Not Found
GET http://ruby.taobao.org/quick/Marshal.4.8/builder-3.2.1.gemspec.rz
404 Not Found
GET http://ruby.taobao.org/quick/Marshal.4.8/builder-3.2.2.gemspec.rz
404 Not Found

刚刚试了，可以安装

➜  ~  gem source
*** CURRENT SOURCES ***

http://ruby.taobao.org
➜  ~  gem install helios "0.2.3"
Successfully installed helios-0.2.3

#5 楼 @huacnlee why……

#6 楼 @ChanceDoor gem source 看看，有什么东西

#7 楼 @huacnlee

 *** CURRENT SOURCES ***

http://ruby.taobao.org

$ gem install helios "0.2.3" -V

看看，过程是怎么样的

#7 楼 @huacnlee 我也 Successfully installed helios-0.2.3 但之后

Parsing documentation for helios-0.2.3
unable to convert "\x84" from ASCII-8BIT to UTF-8 for lib/helios/frontend/fonts/icons.eot, skipping
unable to convert "\xD4" from ASCII-8BIT to UTF-8 for lib/helios/frontend/fonts/icons.woff, skipping
unable to convert "\xFF" from ASCII-8BIT to UTF-8 for lib/helios/frontend/images/bg.jpg, skipping
WARNING:  Unable to pull data from 'http://ruby.taobao.org': bad response Not Found 404 (http://ruby.taobao.org/quick/Marshal.4.8/houston-0.2.4.gemspec.rz)
WARNING:  Unable to pull data from 'http://ruby.taobao.org': bad response Not Found 404 (http://ruby.taobao.org/quick/Marshal.4.8/sequel-3.48.0.gemspec.rz)
WARNING:  Unable to pull data from 'http://ruby.taobao.org': bad response Not Found 404 (http://ruby.taobao.org/quick/Marshal.4.8/sequel-3.48.0.gemspec.rz)
WARNING:  Unable to pull data from 'http://ruby.taobao.org': bad response Not Found 404 (http://ruby.taobao.org/quick/Marshal.4.8/sequel-3.48.0.gemspec.rz)
WARNING:  Unable to pull data from 'http://ruby.taobao.org': bad response Not Found 404 (http://ruby.taobao.org/quick/Marshal.4.8/sequel-3.48.0.gemspec.rz)
WARNING:  Unable to pull data from 'http://ruby.taobao.org': bad response Not Found 404 (http://ruby.taobao.org/quick/Marshal.4.8/builder-3.2.1.gemspec.rz)
WARNING:  Unable to pull data from 'http://ruby.taobao.org': bad response Not Found 404 (http://ruby.taobao.org/quick/Marshal.4.8/builder-3.2.2.gemspec.rz)
ERROR:  Could not find a valid gem '0.2.3' (>= 0) in any repository

#9 楼 @huacnlee 主要就是我 4 楼贴的

#11 楼 @ChanceDoor 貌似最近没同步成功，链接到 rubygems 那边失败了，我查查

#12 楼 @huacnlee 恩 估计是，gem update 的时候 gem builder 也更新失败了 原来你是淘宝的啊！

#12 楼 @huacnlee 已经可以啦 thanks！

恩，后面还有一些都没同步完成 今天才发现是 RubyGems 官方好像取消了 Linode 东京的代理节点，于是都链接到 S3 上面去了，S3 被墙的机率是 100% ... 于是好多天没同步成功了...

#15 楼 @huacnlee 能不能搞个代理做同步的啊？

#16 楼 @ChanceDoor 现在就是我自己搭了一个代理