升級到Ubuntu後Rails壞了11.04

Question

我還是比較新的Rails和Ruby - 升級到新版本的Ubuntu（11.04）後，我的rails安裝不能正常工作。我試過更新Rails，並更新我使用RVM安裝的版本，但都沒有工作。

這裏是終端輸出：

/usr/share/rails-ruby1.8/railties/lib/rails_generator/options.rb:32:in `default_options': undefined method `write_inheritable_attribute' for Rails::Generator::Base:Class (NoMethodError) 
    from /usr/share/rails-ruby1.8/railties/lib/rails_generator/base.rb:90:in `<class:Base>' 
    from /usr/share/rails-ruby1.8/railties/lib/rails_generator/base.rb:85:in `<module:Generator>' 
    from /usr/share/rails-ruby1.8/railties/lib/rails_generator/base.rb:48:in `<module:Rails>' 
    from /usr/share/rails-ruby1.8/railties/lib/rails_generator/base.rb:6:in `<top (required)>' 
    from /home/alec/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require' 
    from /home/alec/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require' 
    from /usr/share/rails-ruby1.8/railties/lib/rails_generator.rb:34:in `<top (required)>' 
    from <internal:lib/rubygems/custom_require>:29:in `require' 
    from <internal:lib/rubygems/custom_require>:29:in `require' 
    from /usr/share/rails-ruby1.8/railties/bin/rails:14:in `<main>' 

從這一點，我想具體更新railties，但也不能工作。自從我第一次收到錯誤以來，輸出沒有改變。

Answer 1

問題是導軌恢復到2.3.5。我不得不卸載軌道，並設置一個gemset如下所述：Every time I close terminal rails defaults back to 2.3.5 from 3.0.3?

Answer 2

我建議你看看RVM。這是管理* NIX平臺上Ruby和Rails安裝的最好方式。