angular - TypeError: undefined is not a constructor (evaluating 'new viewClass()') -

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i using nativescript-intro-slides library, followed angular example mentioned facing error:

    class listcomponent - inline template:1:8 original exception:  typeerror: undefined not constructor (evaluating 'new viewclass()')  original stacktrace: createandattach@file:///app/tns_modules/nativescript-angular/view-util.js:90:33

my code:

import {component,elementref, oninit, viewchild} "@angular/core"; import {registerelement} "nativescript-angular/element-registry"; registerelement("slide", () => require("nativescript-intro-slides").slide); registerelement("slidecontainer", () => require("nativescript-intro-slides").slidecontainer);  @component({     moduleid: module.id,     selector: "list-page",     template: `         <slidecontainer angular="true" #slides>             <slide *ngfor="let img of images">                 <label [text]="img.title"></label>             </slide>         </slidecontainer>     ` })  export class listcomponent implements oninit {     public images: array<any> = [];     @viewchild("slides") slides: elementref;     ngoninit() {         this.images.push({title: 'sports'});         this.images.push({title: 'cats'});         this.images.push({title: 'food'});     }     ngafterviewinit() {         let slidesxml = this.slides.nativeelement;         slidesxml.constructview();     } }

plus not find method constructview. thank you

nativescript-intro-slides library has lot of problems owner recommends using new version nativescript-slides

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