'Observable<Event>' 类型不存在属性 'distinctUntilChanged'

Question

尝试从 5 升级到 Angular 6 并收到此错误：

src/app/app.component.ts(26,23) 中的错误：错误 TS2339：“Observable”类型上不存在“distinctUntilChanged”属性。

我在 app.module.ts 中导入了 distinctUntilChanged：

import "rxjs/add/operator/distinctUntilChanged";

我在 app.component.ts 中的代码：

import { Component } from "@angular/core"; import { Router, NavigationEnd } from "@angular/router";
import { TranslateService } from "@ngx-translate/core";
import { GeoService } from "app/services/geo.service";
import { ArbeteService } from "app/services/arbete.service";
import { GoogleAnalyticsEventsService } from "app/services/google-analytics-events.service";

import * as _ from "lodash";

@Component({
    selector: "app-root",
    templateUrl: "./app.component.html",
    styleUrls: ["./app.component.scss"]
})
export class AppComponent {

        //Send pageview to Google Analytics
        router.events.distinctUntilChanged((previous: any, current: any) => {
        if (current instanceof NavigationEnd) {
            return previous.url === current.url;
        }
        return true;
    }).subscribe((x: any) => {
        googleAnalytics.emitVirtualPageView("Rekryteringsguiden", "Rekryteringsguiden");
    });

我在这里缺少什么？

Answer 1

import { distinctUntilChanged } from 'rxjs/operators';

router.events.pipe(distinctUntilChanged((previous: any, current: any) => {})).subscribe();