http://ionicframework.com/docs/v2/components/#overview

1、src\app\app.module.ts  import

  • import 
  • declarations
  • entryComponents

2、src\app\app.components.ts  import 

  • import
  • this.pages

3、If  .ts .html .scss files in src\pages\

  • .ts 

  • @component   templateUrl

  • export class

  • .html
  • ion-navbar     remeber  button  & menu

usually change this step and file, then you can test Components.