I am uploading android application on google play but It is showing error as : You need to use a different package name because "com.Mobile.mytestbuddy" is already used by one of your other applications
There is already one app of version 1.2 in google play and this new app's version is 1.29
- What is the wrong with this ?
- Do I need to change anything or
- Do I need to unpublish old app before uploading this new version app ?