Hello Arun,
When I create an extension project with the WEB IDE and deploy on SAP ABAP Repository, it save the app in a file called 'webapp' by default. If I don´t add webapp folder in the URL, launchpad used to say me doesn´t find the component .js an other files. So I started to add it and now the extended apps works. But not in this case I'm asking you.
Thank you very much