Angular 财产'；FoodCourtService'；不存在于类型'；FoodCourtInstalls组件&x27；

它说：

“FoodCourtService”不存在，即使在我导入它时存在 此处从导入{FoodCourtService} “../../shared/service/food court.service”

---

您应该调用注入的服务名称，而不使用原始服务名称，请按以下方式更改它

import { Component, OnInit } from '@angular/core';
import { Router } from "@angular/router";
import { ActivatedRoute } from "@angular/router";
import { FoodCourtService } from '../../shared/service/food-court.service';
import { Foodstalls } from "../../shared/model/foodstalls.model";

@Component({
       selector: 'app-foodcourt-stalls',
       templateUrl: './foodcourt-stalls.component.html',
       styleUrls: ['./foodcourt-stalls.component.css']
})
export class FoodcourtStallsComponent implements OnInit {

      foodstallArr : Foodstalls [] = [];

      constructor
          (public router: Router,
           public route: ActivatedRoute,
           public FoodCourtStallService : FoodCourtService) {
     }

      ngOnInit() {
          this.foodstallArr = this.FoodCourtService.getFoodCourts();
      }
  }

---

您已经调用了参数

foodcourtstarlservice

而不是

FoodCourtService

，因此需要

this.foodcourtstarlservice

（尽管它的类型是

FoodCourtService

）

 ngOnInit() {
          this.foodstallArr = this.FoodCourtStallService.getFoodCourts();
   }