未捕获错误:模块"AppModule"导入的意外指令"ProductsComponent".请添加@NgModule注释

Question

我试图访问我的服务器上的主要路线

HTTP://本地主机:4200

完整的错误消息是:

未捕获错误:模块"AppModule"导入的意外指令"ProductsComponent".请添加@NgModule注释.at syntaxError(compiler.es5.js:1690)at compiler.es5.js:15382 at Array.forEach()at CompileMetadataResolver.webpackJsonp .../../../compiler/@angular/compiler.es5.js. CompitMetadataResolver.getNgModuleMetadata(compiler.es5.js:15365)位于JitCompiler.webpackJsonp .../../../compiler/@angular/compiler.es5.js.JitCompiler._loadModules(compiler.es5.js:26795)at at JitCompiler.webpackJsonp .../../../compiler/@angular/compiler.es5.js.JitCompiler.在PlatformRef的JitCompiler.webpackJsonp .../../../ compiler /@angular/compiler.es5.js.JitCompiler.compileModuleAsync(compiler.es5.js:26697)中编译模块和编译器(compiler.es5.js:26768). webpackJsonp .../../../core/@angular/core.es5.js.PlatformRef_.bootstrapModuleWithZone(core.es5.js:4536)位于 Object的PlatformRef .webpackJsonp .../../../core/@angular/core.es5.js.PlatformRef_.bootstrapModule(core.es5.js:4522). ../../../../../src/main.ts(main.ts:11)

其他路由器端点如

HTTP://本地主机:4200 /车

也给出了同样的错误

这是我的主文件

app.module.ts

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

    import { AppComponent } from './app.component';
    import { ProductsComponent } from './products/products.component';
    import { CartComponent } from './cart/cart.component';
    import { MenuComponent } from './menu/menu.component';
    import { AppRoutingModule, routingComponents } from './app.routes';

    @NgModule({
      declarations: [
        AppComponent,
        ProductsComponent,
        CartComponent,
        MenuComponent
      ],
      imports: [
        BrowserModule,
        RouterModule,
        AppRoutingModule,
        routingComponents
      ],
      providers: [],
      bootstrap: [AppComponent,routingComponents]
    })
    export class AppModule { }

这是我的生根文件

app.routes.ts

import { NgModule } from '@angular/core'; 
import { Routes, RouterModule } from '@angular/router';
import { ProductsComponent } from './products/products.component';
import { MenuComponent } from './menu/menu.component';
import { CartComponent } from './cart/cart.component';

const routes: Routes = [
   { path: '', pathMatch: 'full', redirectTo: 'Products' },
   { path: 'Products', component: ProductsComponent },
   { path: 'Menu', component: MenuComponent },
   { path: 'Cart', component: CartComponent },
 ];

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

 export const routingComponents = [ProductsComponent, MenuComponent, CartComponent];

该应用程序似乎在我的本地开发中正常运行.

Answer 1

您只能导入装饰@NgModule器装饰的类.所以移动routingComponent从imports到declarations:

 @NgModule({
    declarations: [
      AppComponent,
      ProductsComponent,
      CartComponent,
      MenuComponent,
      routingComponents // add here
    ],
    imports: [
      BrowserModule,
      RouterModule,
      AppRoutingModule
    ],
    ...