问Ionic2/3角度谷歌地图TypeError: Object(.)不是新FitBoundsService中的函数。

EN

我试图实例化一个角度-谷歌地图的例子，从主要网站：https://angular-maps.com/guides/getting-started/，以进行一些测试的应用。

我使用它们的示例代码如下：

import { Component } from '@angular/core';
        @Component({
              selector: 'page-location',
              templateUrl: 'location.html',

            })
            export class LocationPage {
              title: string = 'My first AGM project';
              lat: number = 51.678418;
              lng: number = 7.809007;
}



page-location 
{

    agm-map {
  height: 150px;
}

}



<h1>{{ title }}</h1>

<!-- this creates a google map on the page with the given lat/lng from -->
<!-- the component as the initial center of the map: -->
<agm-map style="height: 300px;" [latitude]="lat" [longitude]="lng">
  <agm-marker [latitude]="lat" [longitude]="lng"></agm-marker>
</agm-map>

最后抛出以下错误：

core.js:1449错误:未知(承诺)：TypeError: Object(.)不是函数TypeError: Object(.)不是新FitBoundsService的功能(fit-界is :31)在createClass (core.js:12481)、_createProviderInstance (core.js:12458)、createProviderInstance (core.js:12299)、createViewNodes (core.js:13771)、callViewAction (core.js:14218)、execComponentViewsAction (core.js:14127)、createViewNodes (core.js:13812)和createRootView (core.js:13673)。callWithDebugContext (core.js:15098) at new FitBoundsService (fit-界31:31) at createClass (core.js:12481) at _createProviderInstance (core.js:12458) at createProviderInstance (core.js:12299) at createViewNodes (core.js:13771) at callViewAction (core.js:14218) at execComponentViewsAction (core.js:14127) at createViewNodes (core.js:13812) at createViewNodes(core.js:13812)callWithDebugContext (core.js:15098) at c (polyfills.js:3) at Object.reject (polyfills.js:3) at OverlayPortal.NavControllerBase._fireError (nav-控制器-base.js:223) at OverlayPortal.NavControllerBase._failed (nav-控制器-base.js:216) at nav-控制器-base.js:263 at t.invoke (polyfills.js:3) at Object.onInvoke (core.js:4760 ))在t.invoke ( polyfills.js:3 ) at r.run (polyfills.js:3) at polyfills.js:3 我希望你能帮忙找出这个问题的根源。