Angular2 - EXCEPTION:TypeError:undefined不是函数

时间:2016-09-08 19:13:53

标签: javascript android angular ionic-framework ionic2

我完成了Angular2 / IONIC2应用程序的构建,iOS版本运行正常;但是,当我尝试在Android模拟器上运行同一页面时出现错误,当我在CHROME上检查正在运行的应用程序时,我能够得到它:

   EXCEPTION: TypeError: undefined is not a function
  browser_adapter.js:77 EXCEPTION: TypeError: undefined is not a function
  browser_adapter.js:77 STACKTRACE:
  browser_adapter.js:77 TypeError: undefined is not a function
  at new DishesComponent (file:///android_asset/www/build/js/app.bundle.js:1746:49)
  at AppView._View_MenuPage2.createInternal (MenuPage.template.js:354:31)
  at AppView.create (file:///android_asset/www/build/js/app.bundle.js:33434:21)
  at TemplateRef_.createEmbeddedView (file:///android_asset/www/build/js/app.bundle.js:33335:14)
      at ViewContainerRef_.createEmbeddedView (file:///android_asset/www/build/js/app.bundle.js:33844:35)
      at NgFor._bulkInsert (file:///android_asset/www/build/js/app.bundle.js:4250:50)
      at NgFor._applyChanges (file:///android_asset/www/build/js/app.bundle.js:4206:14)
      at NgFor.ngDoCheck (file:///android_asset/www/build/js/app.bundle.js:4188:22)
      at AppView._View_MenuPage0.detectChangesInternal (MenuPage.template.js:225:42)
      at AppView.detectChanges (file:///android_asset/www/build/js/app.bundle.js:33581:14)

对于记录,问题在Android模拟器上显示 ONLY ,当我在Chrome(MAC)上运行时,一切正常。要模仿,我正在使用 Android 5.1

我没有在真实设备上试过,但我想结果应该是一样的。

经过一番挖掘后,我找到导致问题的那条线,但我无法解决它!

我将分享导致问题的行:

page1.html

<ion-slides id="dishes-content" class="dishes-slides" (ionWillChange)="onCategoryChanged($event.activeIndex)">
 <ion-slide *ngFor="let category of categories; let i = index">

 //When I remove the below line, the issue disappears!!
//This is a directive imported from finalMenu
<dishes [categoryValue]="category" [cart]="cart"></dishes>

   </ion-slide>
</ion-slides>

page1.js

  @Component({
   templateUrl: 'build/pages/page1/page1.html',
   directives: [DishesComponent],
   queries: {
     sliders: new ViewChildren(Slides)
   }
   })

finalmenu.js

  @Component({
  selector: 'dishes',
  inputs: ['categoryValue', 'cart'],
  templateUrl: 'build/pages/finalmenu/finalmenu.html'
 })

1 个答案:

答案 0 :(得分:0)

我猜ViewChildren(幻灯片)在这个阶段没有定义......

麦克