android - Not able to build Ionic 2 project -

i migrated ionic 2 project latest version (i.e, 3.0.0). perfect until, generated new page (discountoption) in project today. generated 4 files instead of 3 (*.module.ts new one).

here code:

discount-option.module.ts

import { ngmodule } '@angular/core'; import { ionicpagemodule } 'ionic-angular'; import { discountoption } './discount-option';  @ngmodule({   declarations: [     discountoption,   ],   imports: [     ionicpagemodule.forchild(discountoption),   ],   exports: [     discountoption   ] }) export class discountoptionmodule { } 

app.module.ts

... import { discountoption } '../pages/orders/biller/discount-option/discount-option';  @ngmodule({   declarations: [     ...     discountoption   ],   imports: [     browsermodule,     httpmodule,     ionicmodule.forroot(myapp),     ionicstoragemodule.forroot()   ],   bootstrap: [ionicapp],   entrycomponents: [     ...     discountoption   ],   providers: [     ...   ] }) export class appmodule { } 

(... code shortened brevity)

when tried build app using ionic build android --prod

i error,

[11:35:52]  ionic-app-script task: "build" [11:35:52]  error: type discountoption in e:/tfs             source/hms/hms.app/ekot/src/pages/orders/biller/discount-option/discount-option.ts part of             declarations of 2 modules: appmodule in e:/tfs source/hms/hms.app/ekot/src/app/app.module.ts ,             discountoptionmodule in e:/tfs             source/hms/hms.app/ekot/src/pages/orders/biller/discount-option/discount-option.module.ts! please consider             moving discountoption in e:/tfs             source/hms/hms.app/ekot/src/pages/orders/biller/discount-option/discount-option.ts higher module             imports appmodule in e:/tfs source/hms/hms.app/ekot/src/app/app.module.ts , discountoptionmodule in e:/tfs             source/hms/hms.app/ekot/src/pages/orders/biller/discount-option/discount-option.module.ts. can             create new ngmodule exports , includes discountoption in e:/tfs             source/hms/hms.app/ekot/src/pages/orders/biller/discount-option/discount-option.ts import ngmodule             in appmodule in e:/tfs source/hms/hms.app/ekot/src/app/app.module.ts , discountoptionmodule in e:/tfs             source/hms/hms.app/ekot/src/pages/orders/biller/discount-option/discount-option.module.ts. error: type discountoption in e:/tfs source/hms/hms.app/ekot/src/pages/orders/biller/discount-option/discount-option.ts part of  declarations of 2 modules: appmodule in e:/tfs source/hms/hms.app/ekot/src/app/app.module.ts , discountoptionmodule in e:/t fs source/hms/hms.app/ekot/src/pages/orders/biller/discount-option/discount-option.module.ts! please consider moving discountoptio n in e:/tfs source/hms/hms.app/ekot/src/pages/orders/biller/discount-option/discount-option.ts higher module imports app module in e:/tfs source/hms/hms.app/ekot/src/app/app.module.ts , discountoptionmodule in e:/tfs source/hms/hms.app/ekot/src/page s/orders/biller/discount-option/discount-option.module.ts. can create new ngmodule exports , includes discountop tion in e:/tfs source/hms/hms.app/ekot/src/pages/orders/biller/discount-option/discount-option.ts import ngmodule in app module in e:/tfs source/hms/hms.app/ekot/src/app/app.module.ts , discountoptionmodule in e:/tfs source/hms/hms.app/ekot/src/page s/orders/biller/discount-option/discount-option.module.ts. @ error (native)     @ syntaxerror (e:\tfs source\hms\hms.app\ekot\node_modules\@angular\compiler\bundles\compiler.umd.js:1513:34)     @ compilemetadataresolver._addtypetomodule (e:\tfs source\hms\hms.app\ekot\node_modules\@angular\compiler\bundles\compiler.um d.js:14118:31)     @ e:\tfs source\hms\hms.app\ekot\node_modules\@angular\compiler\bundles\compiler.umd.js:14007:27     @ array.foreach (native)     @ compilemetadataresolver.getngmodulemetadata (e:\tfs source\hms\hms.app\ekot\node_modules\@angular\compiler\bundles\compiler .umd.js:13998:54)     @ addngmodule (e:\tfs source\hms\hms.app\ekot\node_modules\@angular\compiler\bundles\compiler.umd.js:22526:58)     @ e:\tfs source\hms\hms.app\ekot\node_modules\@angular\compiler\bundles\compiler.umd.js:22537:14     @ array.foreach (native)     @ _createngmodules (e:\tfs source\hms\hms.app\ekot\node_modules\@angular\compiler\bundles\compiler.umd.js:22536:26) 

i know error due declaring module twice in app.module , newly generated module file. don't know how make work. advice helpful. thank you.

here ionic info

e:\tfs source\hms\hms.app\ekot>ionic info

your system information:

cordova cli: 6.5.0 ionic framework version: 3.0.0 ionic cli version: 2.2.2 ionic app lib version: 2.2.1 ionic app scripts version: 1.3.0 ios-deploy version: not installed ios-sim version: not installed os: windows 10 node version: v6.10.0 xcode version: not installed 

check google docs regarding ionic v3.

remove reference discountoption page app.module.ts.

@ngmodule({   declarations: [     ...   ],   imports: [     browsermodule,     httpmodule,     ionicmodule.forroot(myapp),     ionicstoragemodule.forroot()   ],   bootstrap: [ionicapp],   entrycomponents: [     ...   ],   providers: [     ...   ] }) export class appmodule { } 

your page referenced , declared in page.module.ts

if importing page anywhere else remove it.. use string equivalent of class name.also add @ionicpage() in discountoption

@ionicpage() @component({   templateurl: 'discount-option.html' }) export class discountoption {} 

reference:ionicpage