author Damien Dell'Amico <damien.dellamico@gmail.com>
 *  copyright license import { AlertController } from 'ionic-angular' ; export class BasePage { constructor ( protected alertCtrl ) { } displayErrorAlert ( ) { const prompt = this . alertCtrl . create ( { title : 'Ionic Taxi' , message : 'Unknown error, please try again later' , buttons : [ 'OK' ] } ) ; prompt . present ( ) ; } }