Angular 2子路由（v3）'无法读取未定义的属性'annotations''

我正在尝试在Angular 2中运行并运行一个测试应用程序，但是在使路由在最新版本的路由器（3.0.0 alpha-7）中工作时遇到了一些问题。

main.ts：

import {bootstrap}    from '@angular/platform-browser-dynamic';
import {AppComponent} from './app.component';
import {APP_ROUTER_PROVIDERS} from './app.routes';

bootstrap(AppComponent, [APP_ROUTER_PROVIDERS]);

app.component.ts：

import {Component} from '@angular/core';
import {ROUTER_DIRECTIVES} from '@angular/router';

@Component({
    selector: 'my-app',
    template: `
       <router-outlet></router-outlet>
    `,
    directives: [ROUTER_DIRECTIVES]
})
export class AppComponent { }

app.routes.ts：

import {provideRouter, RouterConfig} from '@angular/router';
import {SigninRoutes} from './signin/signin.routes';

export const AppRoutes: RouterConfig = [
    ...SigninRoutes
]

export const APP_ROUTER_PROVIDERS = [
    provideRouter(AppRoutes)
];

signin.component.ts：

import {Component} from '@angular/core';
import {ROUTER_DIRECTIVES} from '@angular/router';

@Component({
    selector: 'signin',
    template: `
        <a [routerLink]="['/signin']">Sign In</a>
        <a [routerLink]="['/profile']">Profile</a>
        <br><br>Sign In Test
        <router-outlet></router-outlet>
    `,
    directives: [ROUTER_DIRECTIVES]
})

export class SigninComponent {

}

signin.routes.ts：

import {Component} from '@angular/core';
import {ROUTER_DIRECTIVES} from '@angular/router';

@Component({
    selector: 'signin',
    template: `
        <a [routerLink]="['/signin']">Sign In</a>
        <a [routerLink]="['/profile']">Profile</a>
        <br><br>Sign In Test
        <router-outlet></router-outlet>
    `,
    directives: [ROUTER_DIRECTIVES]
})

export class SigninComponent {

}

profile.component.ts：

import {Component} from '@angular/core';

@Component ({
    selector: 'profile',
    template: `
        Profile Test
    `

})

export class ProfileComponent {

}

出于某种原因，我可以启动该应用程序，但是尝试单击Profile RouterLink会导致错误：

“例外：错误：未捕获（承诺中）：TypeError：无法读取未定义的属性'annotations'”

如果有人可以帮助我解决这个问题，将不胜感激。