在Ionic 3中传递NgRx中的错误网址时，减速器错误始终未定义

import { createReducer, on } from '@ngrx/store';
import { setError } from './error.actions';

export interface ErrorState {
  message: string;
}

export const initialState: ErrorState = {
  message: ''
};

export const errorReducer = createReducer(
  initialState,
  on(setError, (state, { message }) => ({ ...state, message }))
);

import { Injectable } from '@angular/core';
import { Actions, createEffect, ofType } from '@ngrx/effects';
import { catchError, map } from 'rxjs/operators';
import { of } from 'rxjs';
import { setError } from './error.actions';

@Injectable()
export class ErrorEffects {
  handleError$ = createEffect(() =>
    this.actions$.pipe(
      ofType('[Some Action] Error'),
      map((action: any) => action.payload),
      map((error: any) => setError({ message: error.message })),
      catchError(() => of(setError({ message: 'An error occurred.' })))
    )
  );

  constructor(private actions$: Actions) {}
}

import { NgModule } from '@angular/core';
import { StoreModule } from '@ngrx/store';
import { EffectsModule } from '@ngrx/effects';
import { errorReducer } from './error.reducer';
import { ErrorEffects } from './error.effects';

@NgModule({
  imports: [
    StoreModule.forRoot({ error: errorReducer }),
    EffectsModule.forRoot([ErrorEffects])
  ]
})
export class AppModule {}

import { Component } from '@angular/core';
import { Store } from '@ngrx/store';
import { throwError } from 'rxjs';

@Component({
  selector: 'app-example',
  template: `
    <button (click)="triggerError()">Trigger Error</button>
  `
})
export class ExampleComponent {
  constructor(private store: Store) {}

  triggerError() {
    throwError(new Error('Something went wrong.')).subscribe();
  }
}