@rijwan
You mention MyEclipse and visibility to the project www/ artifacts. I want to confirm your question is about using GapDebug to debug your phonegap app and NOT a MyEclipse developer tool question. Let me know if your issue is with MyEclipse and I’ll move this thread to the MyEclipse mobile forum.
Otherwise for GapDebug issues, I need more info to get started. See this guide for the type of info needed. Also include info about your device, os version, absolutely include a screenshot so I can have a better idea of exactly what you are seeing…