Can't use new Angular Fire 2 update with angular seed

Question

I am try to download AngularFir2 v4.0.0-rc.2 to angular-seed repo https://github.com/mgechev/angular-seed/

but I got this error while running npm run start-deving

The following lines is extended from the files I believe the error is related to:

karma.conf.js

{ pattern: 'node_modules/firebase/**/*.js', included: false, watched: false },
{ pattern: 'node_modules/angularfire2/bundles/*.umd.js', included: false, watched: false },

project.config.ts

let additionalPackages: ExtendPackages[] = [
  { name: 'firebase', path: 'node_modules/firebase'},
  { name: 'angularfire2', path : 'node_modules/angularfire2/bundles'}
];    
this.addPackagesBundles(additionalPackages);

test-config.js

System.config({
  baseURL: '/base/',
  paths: {
    angular2: 'node_modules/angular2',
    angularfire2 : 'node_modules/angularfire2',
    rxjs: 'node_modules/rxjs',
  },
  packages: {
    '': {
      defaultExtension: 'js'
    },
    rxjs: {
      defaultExtension: 'js'
    }
  }
});

package.json

"angularfire2": "^4.0.0-rc.2",
"firebase": "^4.3.0",

It maybe SystemJS is not not reading any thing from Angular Fire, because I got no error in vscode when importing { AngularFireDatabase, FirebaseListObservable } from 'angularfire2/database'