Error : No resource found that matches the given name (at 'icon' with value '@drawable/icon')! [duplicate]

Answer 1

Yet another Googlemare Landmine.... Somehow, if you mess up, the icon line on your .gen file dies. (Empirical proof of mine after struggling 2 hours)

Insert a new icon 72x72 icon on the hdpi folder with a different name from the original, and update the name on the manifest also.

The icon somehow resurrects on the Gen file and voila!! time to move on.