Problem adding tabs in template

Ionic Framework ionic-v3
1

Hello,

I’m running the side menu starter project on latest ionic v2 beta and I get a maximum call stack size exceeded error.

The page template looks like this:

<ion-header>
  <ion-navbar>
    <button menuToggle>
      <ion-icon name="menu"></ion-icon>
    </button>
    <ion-title>Page 2</ion-title>
  </ion-navbar>
</ion-header>

<ion-content>
  <ion-tabs>
      <ion-tab tabIcon="heart" ></ion-tab>
      <ion-tab tabIcon="star" ></ion-tab>
    </ion-tabs>
</ion-content>

Any idea why I’m getting this?
Thank you.