INFO [org.netbeans.core.NbProxySelector]: Incomplete SOCKS Server [/] found in ProxySelector[Type: 1] for uri socket://localhost:39795. 
SEVERE [org.openide.util.RequestProcessor]
java.lang.RuntimeException: Debuggger exception
        at org.netbeans.modules.ruby.debugger.RubyDebugger.debug(RubyDebugger.java:62)
        at org.netbeans.modules.ruby.rubyproject.RubyActionProvider$1.run(RubyActionProvider.java:241)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:541)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:963)
Caused by: org.rubyforge.debugcommons.RubyDebuggerException: Ruby process finished prematurely
        at org.rubyforge.debugcommons.RubyDebuggerProxy.attach(RubyDebuggerProxy.java:321)
        at org.rubyforge.debugcommons.RubyDebuggerProxy.startRubyDebug(RubyDebuggerProxy.java:104)
        at org.rubyforge.debugcommons.RubyDebuggerProxy.startDebugging(RubyDebuggerProxy.java:80)
        at org.netbeans.modules.ruby.debugger.RubyDebugger.startDebugging(RubyDebugger.java:97)
        at org.netbeans.modules.ruby.debugger.RubyDebugger.debug(RubyDebugger.java:58)
        ... 3 more
Caused by: java.net.ConnectException: Connection refused
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
        at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
        at java.net.Socket.connect(Socket.java:516)
        at java.net.Socket.connect(Socket.java:466)
        at java.net.Socket.<init>(Socket.java:366)
        at java.net.Socket.<init>(Socket.java:179)
        at org.rubyforge.debugcommons.RubyDebuggerProxy.attach(RubyDebuggerProxy.java:318)
        ... 7 more