Typescript error: cannot run ionic2 app when including “@ionic/cloud-angular”

I’m trying to do push notifications with an ionic2 app so that I need to import classes from “@ionic/cloud-angular”.

However, I got lots of typescript errors in “ionic serve” when doing this, for example:

TypeScript error:
Error TS1005: ‘)’ expected.
TypeScript error:
Error TS1128: Declaration or statement expected.

These are my information about ionic configuration :

Your system information:

Cordova CLI: 6.5.0 
Ionic Framework Version: 2.0.0-beta.11
Ionic CLI Version: 2.2.1
Ionic App Lib Version: 2.2.0
OS: OS X Yosemite
Node Version: v6.10.0

And here is my package.json :

  "dependencies": {
    "@angular/common": "2.0.0-rc.4",
    "@angular/compiler": "2.0.0-rc.4",
    "@angular/core": "2.0.0-rc.4",
    "@angular/forms": "0.2.0",
    "@angular/http": "2.0.0-rc.4",
    "@angular/platform-browser": "2.0.0-rc.4",
    "@angular/platform-browser-dynamic": "2.0.0-rc.4",
    "@angular/router": "2.0.0-rc.2",
    "@ionic/cloud-angular": "^0.11.0",
    "angularfire2": "2.0.0-beta.2",
    "es6-shim": "0.35.0",
    "firebase": "3.3.0",
    "ionic-angular": "2.0.0-beta.11",
    "ionic-native": "^2.5.1",
    "ionicons": "3.0.0",
    "moment": "2.13.0",
    "reflect-metadata": "0.1.3",
    "rxjs": "5.0.0-beta.6",
    "zone.js": "0.6.12"
  "devDependencies": {
    "del": "2.2.0",
    "gulp": "3.9.1",
    "gulp-tslint": "^5.0.0",
    "gulp-watch": "4.3.5",
    "ionic-gulp-browserify-typescript": "^1.1.0",
    "ionic-gulp-fonts-copy": "^1.0.0",
    "ionic-gulp-html-copy": "^1.0.0",
    "ionic-gulp-sass-build": "^1.0.0",
    "ionic-gulp-scripts-copy": "^2.0.0",
    "ionic-gulp-tslint": "^1.0.0",
    "run-sequence": "1.1.5",
    "tslint": "^3.10.1",
    "tslint-ionic-rules": "^0.0.3"
  "cordovaPlugins": [],
  "cordovaPlatforms": [],
  "name": "fbtest",
  "description": "fbtest: An Ionic project"

I hope someone could help that I can do to use import “@ionic/cloud-angular”. Thank you.