I have a problem with does not see function, you can see as bellow

@ionicorhanozturk wrote:

src/pages/home.html

<ion-header>
  <ion-navbar>
    <ion-title>
      Ionic Blank
    </ion-title>
  </ion-navbar>
</ion-header>

<ion-content padding>
    <button ion-button (click)="onGoToUsers()">Users</button>
</ion-content>

src/pages/home.ts

import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';
import { UsersPage } from '../users/users';

@Component({
  selector: 'page-home',
  templateUrl: 'home.html'
})
export class HomePage {

  constructor(public navCtrl: NavController) {

  }

  onGoToUsers() {
    this.navCtrl.push(UsersPage);
  }
}

src/pages/users/users.html

<!--
  Generated template for the UsersPage page.

  See http://ionicframework.com/docs/components/#navigation for more info on
  Ionic pages and navigation.
-->
<ion-header>

  <ion-navbar>
    <ion-title>The users</ion-title>
  </ion-navbar>

</ion-header>


<ion-content padding>
  <button ion-button (click)="onLoadUser('Max')">User 'Max'</button>
  <hr>
  <button ion-button (click)="onLoadUser('Anna')">User 'Anna'</button>
</ion-content>

<ion-footer>
  <p>The Footer</p>
</ion-footer>

src/pages/users/users.ts

import { Component } from '@angular/core';
import { IonicPage, NavController, NavParams } from 'ionic-angular';
import { UserPage } from './user/user';

/**
 * Generated class for the UsersPage page.
 *
 * See https://ionicframework.com/docs/components/#navigation for more info on
 * Ionic pages and navigation.
 */

@IonicPage()
@Component({
  selector: 'page-users',
  templateUrl: 'users.html',
})
export class UsersPage {

  constructor(public navCtrl: NavController, public navParams: NavParams) {
  }
  onLoadUser(name:string) {
    this.navCtrl.push(UserPage, { userName:name });
  }


}

src/pages/users/user/user.html

<ion-header>
    <ion-navbar>
        <ion-title>{{ name }}</ion-title>
    </ion-navbar>
</ion-header>

<ion-content padding>
    <p>Hi I'm {{ name }}</p>
</ion-content>

src/pages/users/user/user.ts

import { Component } from "@angular/core";
import { NavParams } from 'ionic-angular';

@Component({
    selector: 'page-user',
    templateUrl: 'user.html'
})

export class UserPage {
    name:string;

    constructor(private navParams: NavParams) { }

    ngOnInit() {
        this.name = this.navParams.get('userName');
    }
}

and ERROR you can see this picture.

Capture.PNG897x537 18 KB

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