Component "is part of the declarations of 2 modules" error when building (but not running on emulator)

Ionic Framework
3

Thank you for your help.

I removed entryComponents as you suggested, leaving ComponentsModule like this:

@NgModule({
  declarations: [
    HeaderComponent//,
//    SelectorPage
  ],
//  entryComponents: [
//    SelectorPage
//  ],
  exports: [
    HeaderComponent
  ],
  imports: [
    CommonModule,
    FormsModule,
    IonicModule.forRoot(),
  ]
})
export class ComponentsModule { }

And I was able to run on the emulator no problem and also run the build :slight_smile:
Problem solved. Thank you very very much Gokujy.