CarouselView: Problem with ListView inside CarouselView

When I try to use a ListView in one of the views from Carousel view array, I get following error:

Value cannot be null. Parameter name: fieldType

`

<controls:CarouselViewControl VerticalOptions=“FillAndExpand” HorizontalOptions=“FillAndExpand”>

            <controls:CarouselViewControl.ItemsSource>
                <x:Array Type="{x:Type View}">
                    <RelativeLayout>
                        <Image Source="pi.png"/>
                        </RelativeLayout>
                    <RelativeLayout>
                        <ListView>
                            <ListView.ItemTemplate>
                                <DataTemplate>
                                    <Label>
                                    </Label>
                                </DataTemplate>
                            </ListView.ItemTemplate>
                        </ListView>
                    </RelativeLayout>
                    <RelativeLayout>
                        <Label Text="this is 3"/>
                    </RelativeLayout>
                </x:Array>
            </controls:CarouselViewControl.ItemsSource>
        </controls:CarouselViewControl>

`

and it fails to compile if anything is under this DataTemplate, otherwise not.