錯誤需要Sinatra寶石

Question

我很難讓Sinatra在我的本地設置Ubuntu Karmic 9.10上運行。當我有需要「Sinatra的越來越拋出的錯誤是：

NoMethodError: undefined method `[]' for nil:NilClass 
from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:891:in `compile' 
from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:883:in `gsub' 
from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:883:in `compile' 
from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:856:in `route' 
from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:838:in `get' 
from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:1077 
from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:929:in `configure' 
from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra/base.rb:1076 
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' 
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' 
from /usr/local/lib/ruby/gems/1.8/gems/sinatra-1.0/lib/sinatra.rb:4 
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' 
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require' 
from (irb):2 
from :0 

我已經試過：

• 卸載/重裝西納特拉
• 更新所有的寶石
• 確保所有的依賴關係（機架）

任何想法？非常感謝您的時間和幫助！

Answer 1

這是一個問題，顯然只有在Linux上有1.8頭。它與正則表達式匹配有關。如果你看看代碼：path確實匹配/((:\w+)|[\*#{special_chars.join}])/，但$2是nil，即使它應該是一個字符串。

我建議現在切換你的ruby版本。