Angular2 NgModel

Witam mam problem taki przy uzyciu NgModel

Error: Uncaught (in promise): Error: Template parse errors:
Can't bind to 'ngModel' since it isn't a known property of 'input'. ("
    Nowe Zadanie  <input type="text" [ERROR ->][(ngModel)]="newToDoTitle" (keyup.enter)="addToDo()"/>

Podpowie ktoś czy to wina szablonu aktualnie?

(function() {


var Component = ng.core.Component;
var NgModule = ng.core.NgModule;
var BrowserModule = ng.platformBrowser.BrowserModule;
var platformBrowserDynamic = ng.platformBrowserDynamic.platformBrowserDynamic;

var NextComponent = Component({
    selector: 'formularz',
    template:  `
	Nowe Zadanie  <input type="text" [(ngModel)]="newToDoTitle" (keyup.enter)="addToDo()"/><button (click)="addToDo()" class="addTask">Dodaj Zadanie !</button>
    `
})
.Class({
    constructor : function(){
        newToDoTitle:string = '';

    },
    addToDo : function() {
        console.log(this.newToDoTitle);
    }