Uncaught ReferenceError: __importDefault is not defined; After going to Angular 9

Question

运行

之后

ng serve

在浏览器、开发者工具中，我看到以下错误：

Uncaught ReferenceError: __importDefault is not defined
    at Module../src/app/home/home.component.ts (home.component.ts:5)
    at __webpack_require__ (bootstrap:79)
    at Module../src/app/app-routing.module.ts (main.js:98)
    at __webpack_require__ (bootstrap:79)
    at Module../src/app/app.module.ts (app.component.ts:8)
    at __webpack_require__ (bootstrap:79)
    at Module../src/main.ts (environment.ts:16)
    at __webpack_require__ (bootstrap:79)
    at Object.0 (main.ts:13)
    at __webpack_require__ (bootstrap:79)

在我的 home.component.ts 中，我有以下内容：

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'miles-home',
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.scss']
})
export class HomeComponent implements OnInit {

  constructor() { }

  ngOnInit() {
  }

}

这是我的设置：

Angular CLI: 9.0.3
Node: 12.16.1
OS: win32 x64

Angular: 9.0.2
... animations, common, compiler, compiler-cli, core, forms     
... language-service, platform-browser, platform-browser-dynamic
... router
Ivy Workspace: Yes

Package                           Version
-----------------------------------------------------------     
@angular-devkit/architect         0.803.25
@angular-devkit/build-angular     0.803.25
@angular-devkit/build-optimizer   0.803.25
@angular-devkit/build-webpack     0.803.25
@angular-devkit/core              8.3.25
@angular-devkit/schematics        9.0.3
@angular/cdk                      8.2.3
@angular/cli                      9.0.3
@angular/material                 8.2.3
@ngtools/webpack                  8.3.25
@schematics/angular               9.0.3
@schematics/update                0.900.3
rxjs                              6.5.4
typescript                        3.7.5
webpack                           4.39.2

第 5 行只是 templateURL，所以不确定它在抱怨什么...

Answer 1

我在终端中结束了运行，这就是魔法：

npm install --save-dev @angular-devkit/build-angular@latest

Uncaught ReferenceError: __importDefault is not defined; After going to Angular 9

Uncaught ReferenceError: __importDefault is not defined; After going to Angular 9

angular

angular9