Is tutorial wrong on Ionic site?

@LuckyWolf19 wrote:

According to this tutorial , my code is showing errors in Visual Studio Code. It showing errors for

`import {Page, NavController} from 'ionic/ionic';

@Page({
templateUrl: 'app/hello-ionic/hello-ionic.html'
})
export class HelloIonicPage {
constructor(nav: NavController) {
this.nav = nav;
}
}`

However, if I change import to 'ionic-framework/ionic' and put private in front of nav variable name in constructor it seems to work. Is this correct?

`import {Page, NavController} from 'ionic-framework/ionic';

@Page({
templateUrl: 'app/hello-ionic/hello-ionic.html'
})
export class HelloIonicPage {
constructor(private nav: NavController) {
this.nav = nav;
}
}`

reference:

• ionic-v2-with-visual-studio-issues

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