Angular 4 - 请在您的应用程序中包含 "BrowserAnimationsModule"或 "NoopAnimationsModule"

Question

当我在浏览器上启动 Angular 应用程序时遇到问题。一切正常的代码，但我仍然收到此错误:

Found the synthetic property @routerAnimations. Please include eitherBrowserAnimationsModule or NoopAnimationsModule in yourapplication.

我已经查看了关于这个主题的帖子，有很多，但他们的回答都是一样的:

import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

并将其包含在应用程序模块的导入中。

imports: [
    BrowserAnimationsModule,
    ... 
]

这就是我所做的，但仍然遇到同样的错误。我一直在寻找这个解决方案的几个小时。任何人都知道什么可以解决它？谢谢
这是我的 package.json:

{
  "name": "angular-bc",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^4.2.4",
    "@angular/common": "^4.2.4",
    "@angular/compiler": "^4.2.4",
    "@angular/core": "^4.2.4",
    "@angular/forms": "^4.2.4",
    "@angular/http": "^4.2.4",
    "@angular/platform-browser": "^4.2.4",
    "@angular/platform-browser-dynamic": "^4.2.4",
    "@angular/router": "^4.2.4",
    "core-js": "^2.4.1",
    "rxjs": "^5.4.2",
    "zone.js": "^0.8.14"
  },
  "devDependencies": {
    "@angular/cli": "1.4.3",
    "@angular/compiler-cli": "^4.2.4",
    "@angular/language-service": "^4.2.4",
    "@types/jasmine": "~2.5.53",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "~3.1.1",
    "jasmine-core": "~2.6.2",
    "jasmine-spec-reporter": "~4.1.0",
    "karma": "~1.7.0",
    "karma-chrome-launcher": "~2.1.1",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~3.2.0",
    "tslint": "~5.3.2",
    "typescript": "~2.3.3"
  }
}

组件:从答案复制

<div [@routerAnimations]="myOutlet.state">
    <router-outlet #myOutlet></router-outlet>
</div>

Answer 1

添加行

import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

和

imports: [
    BrowserAnimationsModule,
    ... 
]

至 app.module.ts实际上解决了它