Flutter: RenderBox was not laid out when working with ListView

This happens often when you're trying to place Scrollable widget into an infinite heigth widget or infinite heigth (Column) widget into scrollable (SingleChildScrollView,ListView) .

This means you're trying to use SingleChildScrollView> Column> ListView> Column

You should add following property to Column an ListView

Widget build(BuildContext context) {    return SingleChildScrollView(    child: Column(      mainAxisSize: MainAxisSize.min, // Use children total size    children: [      ListView.builder(      itemCount : 10,        shrinkWrap: true, // Use  children total size                        itemBuilder : (a, b)=>Text("ffffffffffff")           )    ],    ),);   }

use this line inside column mainAxisSize: MainAxisSize.min in place this line mainAxisAlignment: MainAxisAlignment.center,also this line shrinkWrap: true inside ListView.builder and this physics: NeverScrollableScrollPhysics() And put this line physics: AlwaysScrollableScrollPhysics() inside the SingleChildScrollView, because you cannot repeatedly scroll in more than one widget (SingleChildScrollView,ListView.builder) in this case.