angular2 路由类型错误 : Cannot read property 'forRoot'

Question

angular2 rc.5

我收到 TypeError: Cannot read property 'forRoot' of undefined(...)当我调查时，我发现 RouterModule 在执行期间是 undefined。

以下是我的app.route.ts

import {Routes, RouterModule } from '@angular/router';

//const routes: Routes = [];
import {HelloComponent} from './hello.component';
import {IncComponent} from './inc.component';
import {AdditionComponent} from './addition.component';
import {RomanComponent} from './roman.component';

let routes: Routes = [

    {
        path: 'hello',
        component: HelloComponent
    },
    {
        path: '',
        redirectTo: '/hello',
        pathMatch: 'full'
    },
    {
        path: 'increment',
        component: IncComponent
    },{
        path: 'adder',
        component: AdditionComponent
    },{
        path: 'roman',
        component: RomanComponent
    }
];


export const routing = RouterModule.forRoot(routes); // error on this line

以下是我的app.module.ts

import { NgModule }      from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';

import { AppComponent }  from './app.component';
import {routing} from './app.routes';
import {HelloComponent} from './hello.component';
import {IncComponent} from './inc.component';
import {AdditionComponent} from './addition.component';
import {RomanComponent} from './roman.component';

@NgModule({
    imports:[
        BrowserModule,
        routing
    ],
    declarations: [
        AppComponent,
        HelloComponent,
        IncComponent,
        AdditionComponent,
        RomanComponent
    ],
    bootstrap:    [ AppComponent ]
})
export class AppModule { }

和 main.ts

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
    //import { HTTP_PROVIDERS } from '@angular/http';
    import { AppModule } from './app.module';

    platformBrowserDynamic().bootstrapModule(AppModule);

Answer 1

我遇到了同样的问题。也许这很老套，但就我而言，清除浏览器缓存后问题就解决了。