我尝试关注 jruby 调试器的各种在线参考,但它不起作用。
我尝试过以下操作:首先更改为 root (不能作为普通用户使用)然后:
jruby -S gem install ruby-debug-base
jruby -S gem install ruby-debug-base
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。