components: md-card NgModule is not a function

Bug, feature request, or proposal:

Bug (?) Version: @angular2-material/card": "^2.0.0-alpha.7 Angular version: RC4 (but tested with RC5 also)

Case is is simple from angular2-material options card is the one that simply cannot work in my case. It is install and accessible through systemJs and the usage is this:

Component:

import { Component, OnInit, Input } from '@angular/core';
import { MenuItems } from '../../../models';
import { MD_CARD_DIRECTIVES } from '@angular2-material/card';

@Component({
  moduleId: module.id,
  selector: 'big-icons-vertical-menu',
  templateUrl: 'big-icons-vertical-menu.component.html',
  styleUrls: ['big-icons-vertical-menu.component.css'],
  directives: [MD_CARD_DIRECTIVES]
})
export class BigIconsVerticalMenuComponent implements OnInit {

  @Input() items: MenuItems;

  constructor() { }

  ngOnInit() {
  }

}

Template (well even if there is no template the issue is the same).

<md-card class="text-center detail-menu">
  <md-card-content>
    Text here
  </md-card-content>
</md-card>

When the app runs and i use the component I get:

zone.js:461 Unhandled Promise rejection: TypeError: core_1.NgModule is not a function at eval (http://localhost:4200/vendor/@angular2-material/core/ripple/ripple.js:168:16) at Object.eval (http://localhost:4200/vendor/@angular2-material/core/ripple/ripple.js:175:2) at eval (http://localhost:4200/vendor/@angular2-material/core/ripple/ripple.js:178:4) at eval (http://localhost:4200/vendor/@angular2-material/core/ripple/ripple.js:179:3) Evaluating http://localhost:4200/vendor/@angular2-material/core/ripple/ripple.js Evaluating http://localhost:4200/vendor/@angular2-material/button/button.js Evaluating http://localhost:4200/app/top-bar/top-bar.component.js Evaluating http://localhost:4200/app/top-bar/index.js Evaluating http://localhost:4200/app/shared/index.js Evaluating http://localhost:4200/app/routes.js Evaluating http://localhost:4200/main.js Error loading http://localhost:4200/main.js ; Zone: <root> ; Task: Promise.then ; Value: Error: TypeError: core_1.NgModule is not a function(…)consoleError @ zone.js:461_loop_1 @ zone.js:490drainMicroTaskQueue @ zone.js:494ZoneTask.invoke @ zone.js:426 zone.js:463 Error: Uncaught (in promise): Error: TypeError: core_1.NgModule is not a function(…)consoleError @ zone.js:463_loop_1 @ zone.js:490drainMicroTaskQueue @ zone.js:494ZoneTask.invoke @ zone.js:426

Maybe there is a relation here with #954 but I cannot add my issue there as it is locked for collaborators only.