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Flutter RenderFlex children have non-zero flex but incoming height constraints are unbounded

The following tree structure is causing a RenderFlex error, apparently due to the last Column > Expanded > Scrollbar > ListView:

tree structure

I tried wrapping the Row in the last Column with Expanded, but I still got the same error.

How can I fix this error without explicitly constraining the ListView with a fixed height?

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2

Answers


  1. 0

    I often got same issues, i play with containers and columns to resolves my issues. Maybe try to change to :

    Row > Expanded > Column > Expanded > Container (with full width) or Row or Column > Scrollbar > ListView

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  2. 0

    1. This issue is due to your List view. If you are using
      Listview.builder then please make sure you use shrinkWrap property
      and value of that property is true. Because Listview is not knowing
      how much space is allocated. If this solution is not work then add
      one more propery physics and make it NeverScrollPhysics as well
      remove Scrollbar widget.

    2. Otherwise Wrap Listview with Expanded and remove Scrollbar. As well give
      physics to NeverScroll Physics which will also solved your issue.

    Above two solution is solve your issue but still you facing the same issue then you need to provide code for that on which line you have issue.

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