ionic cordova run android --prod not working [duplicate]

Question

This question already has an answer here:

• Page is part of the declarations of 2 modules: Error in ionic build prod 3 answers

when I try to run my app in a device by using --prod command I get this Error:

ionic info:

C:\Users\INPT1\Desktop\ionic3\myApp>ionic info

cli packages: `(C:\Users\INPT1\AppData\Roaming\npm\node_modules)`

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

Global packages:

    cordova (Cordova CLI) : 7.1.0

Local packages:

    @ionic/app-scripts : 3.1.5
    Cordova Platforms  : none
    Ionic Framework    : ionic-angular 3.9.2

System:

    Node : v6.10.0
    npm  : 5.5.1
    OS   : Windows 8.1

Environment Variables:

    ANDROID_HOME : not set

Misc:

    backend : pro

Answer 1

1.)It shows that module is declaration of two parts so do as follow:

• -->Delete video.module.ts file from your page.
• -->Remove @IonicPage() from the video.ts file, also remove import {IonicPage}
• -->Do this for all pages and try running using --prod.