Flutter The Scrollbar’s ScrollController has no ScrollPosition attached

I was using a ScrollBar with a ListView widget and was getting this error in the debug console. To get rid of it, I had to set the ScrollController on both widgets.

final yourScrollController = ScrollController();

Scrollbar(
  isAlwaysShown: true,
  thickness: 10,
  controller: yourScrollController, // Here 
  child: ListView.builder(
    padding: EdgeInsets.zero,
    scrollDirection: Axis.vertical,
    controller: yourScrollController, // AND Here
    itemCount: yourRecordList?.length
    ....
  )
)