How to fix member event from ionic angular error in ionic 5

Ionic Framework Ionic Angular
1

Check Below Link - it work for me.

As it’s mentioned in the breaking changes, you should use Observables .

For example, you can create the following service:

import {Injectable} from '@angular/core';
import {Subject} from 'rxjs';

@Injectable({
    providedIn: 'root'
})
export class GlobalFooService {

    private fooSubject = new Subject<any>();

    publishSomeData(data: any) {
        this.fooSubject.next(data);
    }

    getObservable(): Subject<any> {
        return this.fooSubject;
    }
}

Now, you can subscribe in any component like app.component.ts :

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

    constructor(private globalFooService: GlobalFooService) {
        this.initializeApp();
    }

    initializeApp() {
        // other code

        this.globalFooService.getObservable().subscribe((data) => {
            console.log('Data received', data);
        });
    }
}

Now, you just have to emit the event from some other component:

@Component({
    selector: 'app-home',
    templateUrl: 'home.page.html',
    styleUrls: ['home.page.scss']
})
export class HomePage {

    constructor(private globalFooService: GlobalFooService) {
    }

    onSomeButtonClick() {
        this.globalFooService.publishSomeData({
            foo: 'bar'
        });
    }
}