Icon and splash screen not working in android "cordova gray image " appear

Icon and Splash Screen Cordova image appear “gray image” but I generate my images but doesn’t appear what should I do ?

Cordova -v = 6.4.0

Node -v = 6.9.1

Your system information:

Cordova CLI: 6.4.0
Ionic CLI Version: 2.1.13
Ionic App Lib Version: 2.1.7
ios-deploy version: 1.9.0
ios-sim version: 5.0.12
OS: macOS Sierra
Node Version: v6.9.1
Xcode version: Xcode 8.1 Build version 8B62

Do you see in your app folder ‘res’ folder?just copy res folder in android plaftorm folder and build app again