VIZFRAME inside fixflex

Hi

I'm trying to insert vizframe chart into fix flex :

XML :

<mvc:View height="100%" width="100%" controllerName="sap.viz.sample.Donut.Donut"

  xmlns:l="sap.ui.layout" xmlns:viz="sap.viz.ui5.controls" xmlns:mvc="sap.ui.core.mvc"

  xmlns:suite="sap.suite.ui.commons" xmlns="sap.m" xmlns:html="http://www.w3.org/1999/xhtml">

  <l:FixFlex id="idFixFlex" class="fixFlexFixedSize"

  minFlexSize="250">

  <!--Below is the setting panel -->

  <l:fixContent>

  <Text xmlns="sap.m" busy="false" busyIndicatorDelay="1000"

  visible="true" text="test" textDirection="Inherit" wrapping="true"

  textAlign="Begin"  maxLines="1">

  </Text>

  </l:fixContent>

  <!--Above is the setting panel -->

  <!--Below is the chart area -->

  <l:flexContent>

  <viz:Popover id="idPopOver"></viz:Popover>

  <viz:VizFrame id="idVizFrameDonut" uiConfig="{applicationSet:'fiori'}"

  height="100%" width="100%"></viz:VizFrame>

  </l:flexContent>

  <!--Above is the chart area -->

  </l:FixFlex>

</mvc:View>

controler :

var DonutController = Controller.extend("sap.viz.sample.Donut.Donut", {

        onInit: function(oEvent) {

            var oVizFrame = this.getView().byId("idVizFrameDonut");

            var oFixFlex = this.getView().byId("idFixFlex");

            ControllerOverall.customFormat(); // set customized format

            ControllerOverall.loadLibrary(oVizFrame, oFixFlex); // load "sap.suite.ui.commons"

            var dataPath = "test-resources/sap/viz/demokit/dataset/milk_production_testing_data/revenue_cost_consume";

            var oVizFrame = this.getView().byId("idVizFrameDonut");

            oVizFrame.setVizType('donut');

            oVizFrame.setUiConfig({

                "applicationSet": "fiori"

            });

            var oPopOver = this.getView().byId("idPopOver");

            oPopOver.connect(oVizFrame.getVizUid());

The fix content is good but  the chart dosn't show.

Any suggestions ?

Thanks,

Arie.