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Hi guys,
I needed to add badge number to icon of our app so to make it work on all platforms I ended to use to badge plugin developed by Sebastián Katzer. First I used Telerik's plugin market place and also the Telerik's sample app can be built, I had no chance to build our app with it give it a try for 5 or 6 hours :)) and finally I imported the same phonegap plugin from the following link and DADA, it works with no headache.
https://github.com/katzer/cordova-plugin-badge/tree/f2fdf86a8a5c3afccaccc469223faa12f6068bfb
Hope this post save your time :)
Cheers,