Ember-cordova sample app : index.html not found

I built a simple ember-cordova app. When i ran ember cordova emulate which it gives an apk file but when the app opens up in the emulator it says

"net::ERR_FILE_NOT_FOUND(file:///android_asset/www/index.html)". 

I have removed all references to from index.html and also remove the leading slash from rootURL. locationType is also set to hash.