SproutCore的安装 - 找不到RubyGem

Question

我做安装SproutCore的宝石如下：

$ sudo gem install sproutcore --pre 
Fetching: haml-3.1.1.gem (100%) 
Fetching: sass-3.1.1.gem (100%) 
Fetching: fssm-0.2.7.gem (100%) 
Fetching: compass-0.11.1.gem (100%) 
Fetching: thin-1.2.11.gem (100%) 
Building native extensions. This could take a while... 
Fetching: sproutcore-1.6.0.rc.2.gem (100%) 
Successfully installed haml-3.1.1 
Successfully installed sass-3.1.1 
Successfully installed fssm-0.2.7 
Successfully installed compass-0.11.1 
Successfully installed thin-1.2.11 
Successfully installed sproutcore-1.6.0.rc.2 

但是当我尝试运行sc-init我得到以下错误：

$ sc-init sc-microblog 
/Users/joris/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems.rb:926:in `report_activate_error': Could not find RubyGem sproutcore (>= 0) (Gem::LoadError) 
     from /Users/joris/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems.rb:244:in `activate_dep' 
     from /Users/joris/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems.rb:236:in `activate' 
     from /Users/joris/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems.rb:1307:in `gem' 
     from /Users/joris/.rvm/rubies/ruby-1.9.2-p180/bin/sc-init:18:in `<main>' 

一点也没有”吨似乎找到它刚刚安装的sproutcore宝石..出于某种原因。然而：

$ which sproutcore 
/Users/joris/.rvm/rubies/ruby-1.9.2-p180/bin/sproutcore 

谷歌似乎并不知道这个答案，也没有Sproutcore网站。我可能使用其中一个安装程序进行安装，但我宁愿只通过RubyGems并将此错误信息输出。有人有什么主意吗？非常感谢。

Answer 1

我解决了这个运行

gem update --system

，并重新安装了SproutCore：

sudo gem install sproutcore --pre

不知道为什么这工作了，但我想我只是需要进行更新。