沒有這樣的文件加載 - activesupport（LoadError）

Question

我無法讓我的rails 3應用程序運行db2s3 gem。

/usr/lib/ruby/gems/1.8/gems/db2s3-0.3.1/lib/db2s3.rb:1:in `require': no such file to load -- activesupport (LoadError) 
from /usr/lib/ruby/gems/1.8/gems/db2s3-0.3.1/lib/db2s3.rb:1 
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/lib/bundler/runtime.rb:64:in `require' 
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/lib/bundler/runtime.rb:64:in `require' 
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/lib/bundler/runtime.rb:62:in `each' 
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/lib/bundler/runtime.rb:62:in `require' 
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/lib/bundler/runtime.rb:51:in `each' 
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/lib/bundler/runtime.rb:51:in `require' 
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/lib/bundler.rb:112:in `require' 
from /home/sean/chief/config/application.rb:7 
from /usr/lib/ruby/gems/1.8/gems/railties-3.0.0/lib/rails/commands.rb:28:in  `require' 
from /usr/lib/ruby/gems/1.8/gems/railties-3.0.0/lib/rails/commands.rb:28 
from /usr/lib/ruby/gems/1.8/gems/railties-3.0.0/lib/rails/commands.rb:27:in `tap' 
from /usr/lib/ruby/gems/1.8/gems/railties-3.0.0/lib/rails/commands.rb:27 
from script/rails:6:in `require' 
from script/rails:6 

Answer 1

我發現，它是固定在它的一些叉：http://github.com/masterkain/db2s3/commit/fe65d3f5fbe42e1a33cd5924e7fbf450b1f57c9e

但檢查出另一個叉太...

PS。我不知道替代品，但我已經看到備份寶石，曾經做同樣的事情，甚至更多。