Uncaught TypeError: Cannot read property 'attachRouteMatched' of undefined

• UIComponent,constructor:

try { Component.apply(this, arguments);
} 
catch (e) { this._destroyCreatedInstances();
            throw e;
  }
}

• in RouteMatchedHandler.js,
  oRouter.attachRouteMatched(this._onHandleRouteMatched, this);
• new sap.m.routing.RouteMatchedHandler(this.getRouter());