angular - 异常 : Uncaught (in promise): Error: Cannot find module 'app/home/home.module'

Question

我正在尝试使用路由器延迟加载 Angular 2 模块，但出现此错误:

error_handler.js:50 EXCEPTION: Uncaught (in promise): Error: Cannot find module 'app/home/home.module'

我尝试了所有似乎对其他人都有效的答案，比如这个似乎是每个面临这个问题的解决方案，但对我不起作用 Lazy loading in Angular2 RC7 and angular-cli webpack

这是我的代码:app.module

import { MediatorService } from './home/mediator.service';
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { HttpModule } from '@angular/http';

import { AppComponent } from './app.component';


import appRoutes from "./app.routes";


@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    FormsModule,
    HttpModule,
    appRoutes
  ],
  providers: [MediatorService],
  bootstrap: [AppComponent]
})
export class AppModule { }

app.routes

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

const routes = [
 {path : '', loadChildren: './home/home.module#HomeModule'},
 {path: 'devis', loadChildren: './forms/forms.module#FormsModule'}
];

export default RouterModule.forRoot(routes);

home.module

import {NgModule} from "@angular/core";
import {CommonModule} from "@angular/common";
import homeRoutes from "./home.routes";

@NgModule({
  imports:[CommonModule, homeRoutes],
  declarations: [HomeComponent]
})
export default class HomeModule{}

home.routes

import {RouterModule} from "@angular/router";
import {HomeComponent} from "./home.component";
const routes = [
  {path: '', component: HomeComponent}
];

export default RouterModule.forChild(routes);

Package.json

{
  "name": "insurance",
  "version": "0.0.0",
  "license": "MIT",
  "angular-cli": {},
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "lint": "tslint \"src/**/*.ts\"",
    "test": "ng test",
    "pree2e": "webdriver-manager update --standalone false --gecko false",
    "e2e": "protractor"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "^2.3.1",
    "@angular/compiler": "^2.3.1",
    "@angular/core": "^2.3.1",
    "@angular/forms": "^2.3.1",
    "@angular/http": "^2.3.1",
    "@angular/platform-browser": "^2.3.1",
    "@angular/platform-browser-dynamic": "^2.3.1",
    "@angular/router": "^3.3.1",
    "bootstrap": "^4.0.0-alpha.5",
    "core-js": "^2.4.1",
    "font-awesome": "^4.7.0",
    "rxjs": "^5.0.1",
    "ts-helpers": "^1.1.1",
    "zone.js": "^0.7.2"
   },
  "devDependencies": {
    "@angular/compiler-cli": "^2.3.1",
    "@types/jasmine": "2.5.38",
    "@types/jquery": "^2.0.34",
    "@types/node": "^6.0.42",
    "angular-cli": "1.0.0-beta.24",
    "codelyzer": "~2.0.0-beta.1",
    "jasmine-core": "2.5.2",
    "jasmine-spec-reporter": "2.5.0",
    "karma": "1.2.0",
    "karma-chrome-launcher": "^2.0.0",
    "karma-cli": "^1.0.1",
    "karma-jasmine": "^1.0.2",
    "karma-remap-istanbul": "^0.2.1",
    "protractor": "~4.0.13",
    "ts-node": "1.2.1",
    "tslint": "^4.0.2",
    "typescript": "~2.0.3"
  }
}

更新

我设法让它在 plunker 上运行

https://plnkr.co/edit/uLxmxDIeCdDzxbFjYQS7?p=preview

但是我的机器上还是什么都没有!!!!

更新

我安装了一个新的虚拟机ubuntu 16.04我有同样的问题!可能是因为模块的版本，我的意思是那些在 package.json 上的？我如何找出 plunker 中使用的版本，因为它在那里工作。

Answer 1

对于 Angular 8 和 9，延迟加载声明发生了变化。由于Angular 8引入了新的推荐模块加载方式，之前懒加载模块的默认方式是指定模块的字符串路径:

{ path: 'auth', loadChildren: 'src/app/auth/auth.module#AuthModule' }

导入模块的方式改为动态导入。动态导入是基于 promise 的，让您可以访问模块，可以在其中调用模块的类。因此，您的导入现在应该更改为:

  { path: 'auth', loadChildren: () => import('src/app/auth/auth.module').then(m => m.AuthModule) }