angular – Ionic 4原生插件地理定位给我“找不到模块：错误：无

Failed to compile.

./node_modules/@ionic-native/geolocation/index.js Module not found:
Error: Can’t resolve ‘rxjs/Observable’ in
‘C:Projectsionicprayersnode_modules@ionic-nativegeolocation’

这是我的依赖：

"dependencies": {
    "@angular/common": "6.0.9","@angular/core": "6.0.9","@angular/forms": "6.0.9","@angular/http": "6.0.9","@angular/platform-browser": "6.0.9","@angular/platform-browser-dynamic": "6.0.9","@angular/router": "6.0.9","@ionic-native/core": "5.0.0-beta.14","@ionic-native/geolocation": "^4.11.0","@ionic-native/splash-screen": "5.0.0-beta.14","@ionic-native/status-bar": "5.0.0-beta.14","@ionic/angular": "4.0.0-beta.0","@ionic/ng-toolkit": "1.0.0","@ionic/schematics-angular": "1.0.1","cordova-plugin-geolocation": "^4.0.1","core-js": "^2.5.3","rxjs": "6.2.2","zone.js": "^0.8.26"
  },

这是我使用的代码： –

app.module.ts

import { Geolocation } from '@ionic-native/geolocation';
...
NgModule({
  declarations: [AppComponent],entryComponents: [],imports: [BrowserModule,IonicModule.forRoot(),AppRoutingModule],providers: [
    StatusBar,SplashScreen,Geolocation,{ provide: RouteReuseStrategy,useClass: IonicRouteStrategy }
  ],bootstrap: [AppComponent]
})

home.ts

import { Geolocation } from '@ionic-native/geolocation';
...
constructor(private geolocation: Geolocation) {}