Angular RC4,一个或多个供应商,用于" App"未定义:[?]

时间:2016-07-22 08:45:22

标签: angular angular2-routing angular2-services angular2-router3

将我的应用程序更新为angular2到RC4后我收到此错误。我已在LoginServicewebpack starter包中注入了AppComponent

我试图在路线中包含AppComponent,但它不会起作用。 另外我在index.ts中包含了LoginService和APP_PROVIDERS,但我收到了另一个错误

  

无效的提供者 - 仅允许提供者和类型的实例,   得到:未定义

同时将LoginService置于引导程序中,但不起作用。

RC4中Angular2有什么问题?组件不再在树中了?

这是路由器的路由器配置" 3.0.0-beta.2" :

export const routes: RouterConfig = [
  { path: '', component: StartPageComponent },
  { path: 'login', component: StartPageComponent },
  {
    path: 'dashboard', component: 'DashboardComponent',
    canActivate: [WebpackAsyncRoute],
    children: [
      { path: '', component: 'ContentDesktopComponent' }  // must be included
    ]
  },
  { path: '**', component: NoContent }

];

我想为每条路线提供LoginService。

我的app.component看起来像这样:

@Component({
  selector: 'app',
  pipes: [],    
  providers: [LoginService, SearchService, TasksService],   
  directives: [RouterActive],
  encapsulation: ViewEncapsulation.None,
  styles: [
    require('!raw!normalize.css'),
    require('!raw!../assets/css/animate.css'),
    require('./app.component.scss')
  ],
  template: require('./app.component.html')
})
export class App {

  constructor(private translate: TranslateService,
    public appState: AppState) {

    Resource.map(ENDPOINTS.API.toString(), 'http://localhost:3002/api');
    let userLang = navigator.language.split('-')[0]; // use navigator lang if available
    userLang = /(fr|en)/gi.test(userLang) ? userLang : 'pl';
    translate.setDefaultLang('en');
    translate.use('pl');

  }

  ngOnInit() {

  }

}

提供商不适用于路由器......现在......在rc4

login服务:

@Injectable()
export class LoginService {

    private user: User = <User>{
        avatar_url: '/assets/img/avatars/u6.png'
    };

    constructor(private rest: Resource<ENDPOINTS, User, User[]>) {
        this.rest.add(ENDPOINTS.API, 'users');
    }

1 个答案:

答案 0 :(得分:0)

您需要在TranslateServiceAppState

中的某处提供bootstrap(...)@Component(..., providers: [...]