“路由器插座”不是已知元素 Angular2

Question

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不知道为什么会出现这个错误，我在 app.component.ts 中导入了路由器

我正在尝试使用app.component 来保存主要的<router-outlet>，并首先提供登录视图。

app.module

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { RouterModule } from '@angular/router';

import { routing } from './app.routing';
import { AppComponent } from './app.component';
import { LoginComponent } from './login/login.component';
import { AuthService } from './shared/services/auth.service';

import 'rxjs/add/operator/map';
import 'rxjs/add/operator/catch';
import 'rxjs/add/operator/do';
import 'rxjs/add/observable/throw';

@NgModule({
    imports: [
        BrowserModule,
        FormsModule,
        RouterModule,
        routing
    ],
    declarations: [
        AppComponent,
        LoginComponent
    ],
    providers: [
        AuthService,
    ],
    bootstrap: [ AppComponent ]
})
export class AppModule {}

app.component.ts

import { Component, OnInit } from '@angular/core';
import { User } from './shared/models/user';
import { Router } from '@angular/router';

@Component({
    selector: 'my-app',
    templateUrl: './app/app.component.html',
    styleUrls: ['./app/app.component.css']
})
export class AppComponent implements OnInit {
    ngOnInit() {

    }
}

app.component.html

<router-outlet></router-outlet>

app.routing.ts

import { ModuleWithProviders } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { LoginComponent } from './login/login.component';

export const routes: Routes = [
    {
        path: '',
        redirectTo: '/login',
        pathMatch: 'full',
    },
    {
        path: 'login',
        component: LoginComponent
    }
]

export const routing: ModuleWithProviders = RouterModule.forRoot(routes);

Answer 1

我刚刚用 webpack 重构了你的项目，你同样的代码工作得很好：

github repo

第一：

npm install -g @angular/cli

npm install 

ng serve

Answer 2

看起来您可能会多次导入 RouterModule。

我会从您的app.routing.ts 中删除此行

export const routing: ModuleWithProviders = RouterModule.forRoot(routes);

在您的app.module 中，我将导入您的路线：

import { routes } from './app.routing';

然后将RouterModule 导入为：

RouterModule.forRoot(routes)

Answer 3

您应该在您的AppModule 中添加RouterModule.forRoot(routes) 语句：

@NgModule({
    imports: [
        BrowserModule,
        FormsModule,
        RouterModule.forRoot(routes)
    ],
    declarations: [
        AppComponent,
        LoginComponent
    ],
    providers: [
        AuthService,
    ],
    bootstrap: [ AppComponent ]
})
export class AppModule {}

并将其从您的 app.routing.ts 文件中删除：

export const routes: Routes = [
    {
        path: '',
        redirectTo: '/login',
        pathMatch: 'full',
    },
    {
        path: 'login',
        component: LoginComponent
    }
];

Answer 4

只需导入RouterOutlet

import { RouterOutlet } from '@angular/router';