how debug a cairngorm 3 module?

Some more information as to what exactly it is you're attempting to debug would be great. However, a few tips ...

• Use Flash Builder's Debug mode with break points.

• Use the Spark TraceTarget definition in your project and follow the console log eg.

<s:TraceTarget level="{ LogEventLevel.DEBUG }">

     <s:filters>

          <fx:Array>

               <fx:String>com.adobe.cairngorm.*</fx:String>

               <fx:String>org.spicefactory.*</fx:String>

           </fx:Array>

     </s:filters>

</s:TraceTarget>