Popover - viewcontroller.dismiss() was not work on android. (beta11)

import { Component } from ‘@angular/core’;
import { NavController, PopoverController, ViewController} from ‘ionic-angular’;

@Component({
templateUrl: ‘build/pages/home/home.html’
})
export class HomePage {
constructor(public navCtrl: NavController, private popoverCtrl: PopoverController) {

}

presentPopover(ev) {
let popover = this.popoverCtrl.create(PopoverTemplate);
popover.present({
ev: ev
});
}
}

@Component({
template: <ion-list> <button ion-item (click)='close()'>exit</button> </ion-list>
})
class PopoverTemplate {
constructor(private viewCtrl: ViewController) { }

close() {
this.viewCtrl.dismiss();
}
}