Hi,
I wrote the following view and got this error: Uncaught TypeError: Cannot read property 'clone' of undefined
<core:View xmlns:core="sap.ui.core" xmlns:l="sap.ui.layout" xmlns="sap.m" xmlns:table="sap.ui.table" controllerName="com.sap.solman.setup.overview.view.Master"> <Page id="scenarioStepListPage" title="{Description}" showNavButton="true" navButtonPress="onNavBack" > <IconTabBar id="idIconTabBar" select="onFilterSteps" class="sapUiResponsiveContentPadding"> <items> <IconTabFilter showAll="true" count="1" text="Step(s)" key="All" /> <IconTabSeparator/> <IconTabFilter icon="sap-icon://status-completed" iconColor="Positive" count="2" text="Txt" key="S" /> <IconTabFilter icon="sap-icon://status-in-process" iconColor="Critical" count="3" text="Txt" key="W" /> <IconTabFilter icon="sap-icon://status-error" iconColor="Negative" count="4" text="Txt" key="E" /> <IconTabFilter icon="sap-icon://status-inactive" iconColor="Default" count="5" text="Txt" key="I" /> </items> <content> </content> </IconTabBar> </Page></core:View>If I add a footer got another error: Cannot add direct child without default aggregation defined for control sap.m.IconTabBar
Tried also to add controls in content without success...
Maybe this tells you something meaningful but not for me! 
Regards,
Serge.