Cannot read property 'bind' of undefined

Hi,

I am getting this error in NavigationCardStack in :
 componentWillMount(): void {
   this._render = this._render.bind(this);
    this._renderScene = this._renderScene.bind(this);
  }

With react versions:
"react": "16.6.0-alpha.8af6728",
    "react-native": "^0.57.3",

Maybe it is an issue with React-native 0.57???

Any help? 