Cannot see ionic app icon after install of ionic app


I am searching from 2 months regarding app icon in ionic. but failed to set app icon.

I want to mention what i have done.

after running => ionic resources --icon

I can see the images in this folder “\resources\android\icon”.

I think there is no problem in my project

even i have tried to make scratch project and done the same but same result.

ionic version 2.1.12

npm version 4.0.2

node version 5.7.0

android version “6.0.0”

android platform 23 or 24