Row(
    children: addEntities(),
),

ListView(
        scrollDirection: Axis.horizontal,
        children: <Widget>[
        Row(
           children: addEntities(),
        ),
        ],
        ),

flutter: ══╡ EXCEPTION CAUGHT BY RENDERING LIBRARY ╞═════════════════════════════════════════════════════════
flutter: The following assertion was thrown during performResize():
flutter: Horizontal viewport was given unbounded width.
flutter: Viewports expand in the scrolling direction to fill their container.In this case, a horizontal
flutter: viewport was given an unlimited amount of horizontal space in which to expand. This situation
flutter: typically happens when a scrollable widget is nested inside another scrollable widget.
flutter: If this widget is always nested in a scrollable widget there is no need to use a viewport because
flutter: there will always be enough horizontal space for the children. In this case, consider using a Row
flutter: instead. Otherwise, consider using the "shrinkWrap" property (or a ShrinkWrappingViewport) to size
flutter: the width of the viewport to the sum of the widths of its children.