构建应用程序时，Yeoman模块ngAnimate丢失

Question

我正在使用AngularJs和Yeoman建立一个应用程序，当我这样做时，我会用＃34; $ grunt发送＆＃34;我的网站运行没有任何问题，但当我做＆＃34; $ grunt build＆＃34;我收到以下错误

看起来即使是一个空的Yeoman项目，在将bootstrap v3更改为v4时也会出现问题！

Uncaught Error: [$injector:modulerr] Failed to instantiate module MyWebApp due to:
Error: [$injector:modulerr] Failed to instantiate module ngAnimate due to:
Error: [$injector:nomod] Module 'ngAnimate' is not available! You either misspelled the module name or forgot to load it. If registering a module ensure that you specify the dependencies as the second argument.

bower.json

{
  "name": "mywebapp",
  "version": "0.0.0",
  "dependencies": {
    "angular": "^1.4.0",
    "bootstrap": "v4.0.0-alpha.2",
    "angular-animate": "^1.4.0",
    "angular-cookies": "^1.4.0",
    "angular-resource": "^1.4.0",
    "angular-route": "^1.4.0",
    "angular-sanitize": "^1.4.0",
    "angular-touch": "^1.4.0",
    "angular-google-maps": "^2.3.2"
  },
  "devDependencies": {
    "angular-mocks": "^1.4.0"
  },
  "appPath": "app",
  "moduleName": "MyWebApp",
  "overrides": {
    "bootstrap": {
      "main": [
        "less/bootstrap.less",
        "dist/css/bootstrap.css",
        "dist/js/bootstrap.js"
      ]
    }
  }
}

这是我app.js的顶部：

angular.module('MyWebApp', [
    'ngAnimate',
    'ngCookies',
    'ngResource',
    'ngRoute',
    'ngSanitize',
    'ngTouch',
    'uiGmapgoogle-maps',
    'MyWebApp.config'
  ])...

这是index.html的脚本部分

<!-- build:js(.) scripts/vendor.js -->
    <!-- bower:js -->
    <script src="bower_components/jquery/dist/jquery.js"></script>
    <script src="bower_components/angular/angular.js"></script>
    <script src="bower_components/bootstrap/dist/js/bootstrap.js"></script>
    <script src="bower_components/angular-animate/angular-animate.js"></script>
    <script src="bower_components/angular-cookies/angular-cookies.js"></script>
    <script src="bower_components/angular-resource/angular-resource.js"></script>
    <script src="bower_components/angular-route/angular-route.js"></script>
    <script src="bower_components/angular-sanitize/angular-sanitize.js"></script>
    <script src="bower_components/angular-touch/angular-touch.js"></script>
    <script src="bower_components/angular-simple-logger/dist/angular-simple-logger.js"></script>
    <script src="bower_components/lodash/lodash.js"></script>
    <script src="bower_components/angular-google-maps/dist/angular-google-maps.js"></script>
    <!-- endbower -->
    <!-- endbuild -->
        <script src="scripts/config.js"></script>
        <!-- build:js({.tmp,app}) scripts/scripts.js -->
        <script src="scripts/app.js"></script>
        <script src="scripts/controllers/navbar.js"></script>
        <script src="scripts/controllers/main.js"></script>
        <script src="scripts/controllers/about.js"></script>
        <!-- endbuild -->

希望有人可以提供帮助