Angular 固定离子3：属性'；问题'；不存在于类型'；对象'；

我有一个关于这一行的错误，我已经尝试了不同的来源来修复它，但不幸的是我不能。有什么帮助吗？我正在做一个简单的测试，不介意atm上提供的数据

这是我的数据。这就是我遇到麻烦的地方

import { Injectable } from '@angular/core';
import 'rxjs/add/operator/map';
import { HttpClient } from '@angular/common/http';

/*
  Generated class for the DataProvider provider.

  See https://angular.io/guide/dependency-injection for more info on providers
  and Angular DI.
*/
@Injectable()
export class DataProvider {


  data: any;

  constructor(public http: HttpClient) {

  }

  load(){

    if(this.data){
        return Promise.resolve(this.data);
    }

    return new Promise(resolve => {

        this.http.get('assets/data/questions.json').subscribe(data => {
            this.data = data.questions; <----------THIS IS LINE IS DISPLAYING ERROR
            resolve(this.data);
        });

    });

  }

}

最后是显示测验的ion html文件

<ion-content>

  <ion-slides #slides>

      <ion-slide class="start-slide">
          <button ion-button color="primary" (click)="nextSlide()">Start!</button>
      </ion-slide>

      <ion-slide *ngFor="let question of questions; let i = index;">

          <h3>Question {{i+1}}</h3>

          <flash-card [isFlipped]="question.flashCardFlipped">
              <div class="flash-card-front" [innerHTML]="question.flashCardFront"></div>
              <div class="flash-card-back" [innerHTML]="question.flashCardBack"></div>
          </flash-card>

          <h3>{{question.questionText}}</h3>

          <ion-list no-lines radio-group>

              <ion-item *ngFor="let answer of question.answers; let i = index;">

                  <ion-label>{{i+1}}. {{answer.answer}}</ion-label>
                  <ion-radio (click)="selectAnswer(answer, question)" [checked]="answer.selected" [disabled]="hasAnswered"></ion-radio>

              </ion-item>

          </ion-list>

      </ion-slide>

      <ion-slide>
          <h2>Final Score: {{score}}</h2>

          <button (click)="restartQuiz()" ion-button full color="primary">Start Again</button>

      </ion-slide>

  </ion-slides>

</ion-content>

开始
问题{{i+1}
{{问题.问题文本}
{{i+1}}。{{答案.答案}
最终分数：{{Score}
重新开始

您需要将响应更改为以下任意类型：

this.http.get('assets/data/questions.json').subscribe((data:any) => {

---

你的错误是什么？这个问题已经解决了。但是您的回复非常感谢您的快速回复，陛下。这解决了我的问题。

<ion-content>

  <ion-slides #slides>

      <ion-slide class="start-slide">
          <button ion-button color="primary" (click)="nextSlide()">Start!</button>
      </ion-slide>

      <ion-slide *ngFor="let question of questions; let i = index;">

          <h3>Question {{i+1}}</h3>

          <flash-card [isFlipped]="question.flashCardFlipped">
              <div class="flash-card-front" [innerHTML]="question.flashCardFront"></div>
              <div class="flash-card-back" [innerHTML]="question.flashCardBack"></div>
          </flash-card>

          <h3>{{question.questionText}}</h3>

          <ion-list no-lines radio-group>

              <ion-item *ngFor="let answer of question.answers; let i = index;">

                  <ion-label>{{i+1}}. {{answer.answer}}</ion-label>
                  <ion-radio (click)="selectAnswer(answer, question)" [checked]="answer.selected" [disabled]="hasAnswered"></ion-radio>

              </ion-item>

          </ion-list>

      </ion-slide>

      <ion-slide>
          <h2>Final Score: {{score}}</h2>

          <button (click)="restartQuiz()" ion-button full color="primary">Start Again</button>

      </ion-slide>

  </ion-slides>

</ion-content>

this.http.get('assets/data/questions.json').subscribe((data:any) => {