Question

我从来没有遇到过启动新应用程序的问题，但是今天我遇到了一个错误，当我尝试运行rails new murphy时说这个

/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:59:in `gem_original_require': no     such file to load -- active_support/core_ext/object/singleton_class (LoadError)
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:59:in `require'
from /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta2/lib/rails/generators.rb:6
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:55:in `gem_original_require'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:55:in `require'
from /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta2/lib/rails/commands/application.rb:10
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:55:in `gem_original_require'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:55:in `require'
from /usr/local/lib/ruby/gems/1.8/gems/railties-3.0.0.beta2/bin/rails:30
from /usr/local/bin/rails:19:in `load'
from /usr/local/bin/rails:19

Answer 1

看起来你正在使用Rails 3.0 beta。尝试使用Rails 3.0.9

gem install rails -v3.0.9

新的rails项目错误Rails 3

1 个答案: