Issue with @ngrx/effects is preventing wtihLatestFrom from functioning correctly

Attempting to access a section of my store within an ngrx effect in an Angular 5 project is proving challenging. Despite following advice from various threads on StackOverflow and blog posts, utilizing withLatestFrom and the injected store, I continue to encounter a type error. Currently, I am using Angular 5, ngrx 4.1.1, and rxjs 5.5.2.

The specific error message states:

error TS2339: Property 'withLatestFrom' does not exist on type 'Actions<Action>'.

The code snippet that is causing this issue is provided below. Any insights into what may be triggering this error?

import {Injectable} from '@angular/core';
import {Store} from '@ngrx/store';
import {Effect, Actions} from '@ngrx/effects';

import 'rxjs/add/operator/map';
import 'rxjs/add/operator/switchMap';
import 'rxjs/add/operator/withLastestFrom';

import * as EndpointActions from './endpoint.actions';
import {AppState} from '../../store/app.reducers';

@Injectable()
export class EndpointEffects {

  @Effect()
  setEndpointData = this.actions$
    .ofType(EndpointActions.SET_ENDPOINT_DATA)
    .withLatestFrom(this.store$.select(state => state.endpoint.endpointAddress))
    .map(([action, endpointAddress]) => {
      return {
        type: EndpointActions.TRY_ENDPOINT_ADDRESS,
        payload: {endpointAddress: endpointAddress}
      };
    });

  constructor(private actions$: Actions, private store$: Store<AppState>) {}
}

Answer №1

It appears there is a mistake in the code. In my opinion:

import 'rxjs/add/operator/withLastestFrom';

Should actually be:

import 'rxjs/add/operator/withLatestFrom';

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