小编bek*_*ais的帖子

我正在尝试使用AngularFire2创建一个Angular 2应用程序

我正在遵循这个指南.

每次我尝试在我的应用程序模块中导入AngularFireModule然后在导入中执行AngularFireModule.initializeApp(config)我在尝试运行ng服务时遇到以下错误:

ERROR in ./~/firebase/app/shared_promise.js
Module not found: Error: Can't resolve 'promise-polyfill' in 
'C:\Users\username\Desktop\demo-app\node_modules\firebase\app'
@ ./~/firebase/app/shared_promise.js 22:35-62
@ ./~/firebase/app/firebase_app.js
@ ./~/firebase/app.js
@ ./~/firebase/firebase-browser.js
@ ./~/angularfire2/angularfire2.js
@ ./~/angularfire2/index.js
@ ./src/app/app.module.ts
@ ./src/main.ts
@ multi webpack-dev-server/client?http://localhost:4200 ./src/main.ts
webpack: Failed to compile.

这就是我的package.json的样子:

 {
     "name": "xxxxx",
     "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, …