为了尽可能简单,我在官方网页上复制了5 Min Quickstart的代码.演示本身工作正常,但是当我尝试使用注射器时,我会发现错误

ORIGINAL ERROR: Cannot resolve all parameters for MyAppComponent. Make
sure they all have valid type or annotations.

我的typescript文件

/// <reference path="typings/angular2/angular2.d.ts" />
import {Component,View,bootstrap,} from 'angular2/angular2';

class Names {}

// Annotation section
@Component({
    selector: 'my-app',injectables: [Names]
})
@View({
    template: '<h1>Hello {{ name }}</h1>'
})
// Component controller
class MyAppComponent {
    name: string;
    constructor(names: Names) {
        this.name = 'Alice';
    }
}

bootstrap(MyAppComponent);

附：像5 Min Quickstart那样,我使用Traceur,SystemJS和Angular2 alpha(23)

有人知道我失踪了吗？