为什么在执行GET http调用Angular

Question

我目前正在处理有角度的http调用，起初我使用内存api创建服务，但后来删除了所有内存依赖项以集成实际的Java服务。在模块和组件文件中删除了内存api的依赖关系后，我得到“找不到集合'1bvzxg'”的错误，请您想知道我该如何解决。 还重做了组件和服务文件以调用免费的天气api，我仍然遇到相同的问题，

这是我的服务文件

 import { Injectable } from '@angular/core';
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Http } from "@angular/http";
import { Observable, of, throwError, pipe } from 'rxjs';
import { catchError, tap, map,  mergeMap } from 'rxjs/operators';
import {PolicyData} from '../../../../core/models/policy'

@Injectable(
    {
        providedIn: 'root'
    }
)
export class PolicyService {

    constructor(private http: HttpClient) { }
    private weatherUrl: string = 'https://api.myjson.com/bins/1bvzxg';
    policy_endpoint = 'config';


    getWeather():Observable<PolicyData> {
        console.log('getting weather');
        return this.http.get<PolicyData>(this.weatherUrl)
        .pipe(
            tap(data => console.log('getPolicyInfo:'+JSON.stringify(data)))
        )
      }}

这是组件代码

export class PolicyComponent implements OnInit {  config: PolicyData; constructor(public snackBar: MatSnackBar, private policyService: PolicyService)   getWeather() {
        this.policyService.getWeather()
        .subscribe(
            (config: PolicyData) => config, // success path
            (err: any) => console.log(err),
            () => console.log('all done right')
        );

        }

这是HTML调用

<button mat-button color="primary" style="left:0%" type="button" (click)="getWeather()"><h3>Let Me Choose My Vehicle</h3></button>

请检查并指导我在这，在此先感谢...