我正在使用這個(gè)谷歌地圖角度組件教程，它工作得很好！但是打開(kāi)信息窗口會(huì)引發(fā)異常。這是我的代碼，它在 npm 包中的“MapInfoWindow”組件上調(diào)用“this.infoWindow.open”方法。import {  MapInfoWindow,  MapMarker,  GoogleMap} from '@angular/google-maps';export class YogabandEventsComponent implements OnInit {  @ViewChild(MapInfoWindow, {    static: false  }) infoWindow: MapInfoWindow;  @ViewChild(GoogleMap, {    static: false  }) googleMap: GoogleMap;  openInfo(marker: MapMarker, content) {    this.infoContent = content;    this.infoWindow.open(marker);  }}<google-map [options]="options" [zoom]="zoom" [center]="center" class="h-100" height="100%" width="100%">  <map-marker #markerElem *ngFor="let marker of markers" (mapClick)="openInfo(markerElem, marker.info)" [position]="marker.position" [label]="marker.label" [title]="marker.title" [options]="marker.options">  </map-marker>  <map-info-window>{{ infoContent }}</map-info-window></google-map>什么時(shí)候infoWindow.open（標(biāo)記）被稱為它進(jìn)入google-maps.js // 第 1122 行但在第 1122 行收到錯(cuò)誤，因?yàn)闆](méi)有“getAnchor()”方法this.infoWindow.open(this._googleMap.googleMap, anchor ? anchor.getAnchor() : undefined);   // in google-maps.js open(anchor) {  this._assertInitialized();  this._elementRef.nativeElement.style.display = '';  this.infoWindow.open(this._googleMap.googleMap, anchor ? anchor.getAnchor() : undefined); // line 1122}