java.lang.NullPointerException
   at org.netbeans.modules.ruby.railsprojects.Generator.findUsageFile(Generator.java:243)
   at org.netbeans.modules.ruby.railsprojects.Generator.getUsage(Generator.java:221)
   at org.netbeans.modules.ruby.railsprojects.GeneratorPanel.showUsage(GeneratorPanel.java:517)
   at org.netbeans.modules.ruby.railsprojects.GeneratorPanel.showGenerator(GeneratorPanel.java:511)
   at org.netbeans.modules.ruby.railsprojects.GeneratorPanel.<init>(GeneratorPanel.java:131)
   at org.netbeans.modules.ruby.railsprojects.GenerateAction.generate(GenerateAction.java:194)
   at org.netbeans.modules.ruby.railsprojects.GenerateAction.performAction(GenerateAction.java:173)
   at org.openide.util.actions.NodeAction$DelegateAction$1.run(NodeAction.java:586)
   at org.openide.util.actions.ActionInvoker$1.run(ActionInvoker.java:95)
   at org.openide.util.actions.ActionInvoker$ActionRunnable.actionPerformed(ActionInvoker.java:162)
   at org.netbeans.core.ModuleActions.invokeAction(ModuleActions.java:109)
   at org.netbeans.modules.openide.actions.ActionsBridgeImpl.invokeAction(ActionsBridgeImpl.java:60)
   at org.openide.util.actions.ActionInvoker$ActionRunnable.doRun(ActionInvoker.java:153)
   at org.openide.util.actions.ActionInvoker$2.run(ActionInvoker.java:110)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1957)