angular – 没有ChildrenOutletContexts的提供者(injectionError)

使用Angular CLI为我的应用程序生成路由模块时出现以下错误：

ERROR Error: No provider for ChildrenOutletContexts!
    at injectionError (core.es5.js:1169)
    at noProviderError (core.es5.js:1207)
    at ReflectiveInjector_.webpackJsonp.../../../core/@angular/core.es5.js.ReflectiveInjector_._throwOrNull (core.es5.js:2649)
    at ReflectiveInjector_.webpackJsonp.../../../core/@angular/core.es5.js.ReflectiveInjector_._getByKeyDefault (core.es5.js:2688)
    at ReflectiveInjector_.webpackJsonp.../../../core/@angular/core.es5.js.ReflectiveInjector_._getByKey (core.es5.js:2620)
    at ReflectiveInjector_.webpackJsonp.../../../core/@angular/core.es5.js.ReflectiveInjector_.get (core.es5.js:2489)
    at resolveNgModuleDep (core.es5.js:9481)
    at NgModuleRef_.webpackJsonp.../../../core/@angular/core.es5.js.NgModuleRef_.get (core.es5.js:10569)
    at resolveDep (core.es5.js:11072)
    at createClass (core.es5.js:10936)

我用Angular CLI生成了路由模块，如下所示：@H_301_4@

ng generate module --routing App

这是路由模块的内容：@H_301_4@

import { NgModule } from '@angular/core';
import { Routes,RouterModule } from '@angular/router';
import { MyComponent } from './my/my.component';

const routes: Routes = [
  {
    path: '',component: MyComponent,},];

@NgModule({
  imports: [RouterModule.forChild(routes)],exports: [RouterModule],declarations: []
})
export class AppRoutingModule { }

这就是我在app.component.html中的内容：@H_301_4@

<div class="container" role="main">
    <router-outlet></router-outlet>
</div>

这个错误的原因是什么？@H_301_4@

要解决此问题，请更改此行：

imports: [RouterModule.forChild(routes)],

至：@H_301_4@

imports: [RouterModule.forRoot(routes)],

导致该错误的原因是RouterModule.forChild()生成包含必要指令和路由但不包含路由服务的模块。这就是RouterModule.forRoot的用途：它生成一个包含必要指令，路由和路由服务的模块。@H_301_4@

Angular docs中的更多信息：Angular – Router Module。@H_301_4@

原文链接：https://www.f2er.com/angularjs/143988.html

angular – 没有ChildrenOutletContexts的提供者(injectionError)

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