Debugging 无法为jruby运行调试器

我曾尝试跟踪jruby调试器的各种在线参考，但它不起作用

我尝试了以下操作：首先更改为root（不能作为普通用户使用），然后：

但随后以下命令失败：

jruby --debug -S rdebug ./classifier-wf.rb 

Gem::LoadError: Could not find columnize (>= 0.1) amongst [jdbc-mysql-5.1.24, rake-10.0.3, ruby-debug-0.10.4, ruby-debug-base-0.10.4-java]
           to_specs at /opt/jruby-1.7.3/lib/ruby/shared/rubygems/dependency.rb:247
activate_dependencies at /opt/jruby-1.7.3/lib/ruby/shared/rubygems/specification.rb:777
               each at org/jruby/RubyArray.java:1613
activate_dependencies at /opt/jruby-1.7.3/lib/ruby/shared/rubygems/specification.rb:766
           activate at /opt/jruby-1.7.3/lib/ruby/shared/rubygems/specification.rb:750
                gem at /opt/jruby-1.7.3/lib/ruby/shared/rubygems.rb:1232
             (root) at /opt/jruby-1.7.3/bin/rdebug:22

---

我正在运行jruby 1.7.3。谢谢。

用它代替其他调试器宝石，很快你就会上瘾了

pry调试器不适用于jruby，不需要pry调试器，只要在需要休息的地方添加

binding.pry

。

jruby --debug -S rdebug ./classifier-wf.rb 

Gem::LoadError: Could not find columnize (>= 0.1) amongst [jdbc-mysql-5.1.24, rake-10.0.3, ruby-debug-0.10.4, ruby-debug-base-0.10.4-java]
           to_specs at /opt/jruby-1.7.3/lib/ruby/shared/rubygems/dependency.rb:247
activate_dependencies at /opt/jruby-1.7.3/lib/ruby/shared/rubygems/specification.rb:777
               each at org/jruby/RubyArray.java:1613
activate_dependencies at /opt/jruby-1.7.3/lib/ruby/shared/rubygems/specification.rb:766
           activate at /opt/jruby-1.7.3/lib/ruby/shared/rubygems/specification.rb:750
                gem at /opt/jruby-1.7.3/lib/ruby/shared/rubygems.rb:1232
             (root) at /opt/jruby-1.7.3/bin/rdebug:22