When i add plugin any plugin app script remove automatic ,why?is there any solution for this problem

Ionic Framework ionic-v3
1

cli packages: (C:\Users\Ahmadklsany\AppData\Roaming\npm\node_modules)

@ionic/cli-utils  : 1.19.0
ionic (Ionic CLI) : 3.19.0

global packages:

cordova (Cordova CLI) : not installed

local packages:

@ionic/app-scripts : 3.1.8
Cordova Platforms  : android 6.3.0
Ionic Framework    : ionic-angular 3.7.1

System:

Android SDK Tools : 26.1.1
Node              : v8.1.3
npm               : 5.0.3
OS                : Windows 10

Environment Variables:

ANDROID_HOME : C:\Users\Ahmadklsany\AppData\Local\Android\sdk

Misc:

backend : pro