Flutter错误/c：/c：pub-cache/hosted/pub.dartlang.org/getWidget-2.0.4/lib/components/components/sticky_header/gf_sticky_header_builder

Question

如何解决此错误？帮助！

/c:/flutter/.pub-cache/hosted/pub.dartlang.org/getwidget-2.0.4/lib/components/components/sticky_header/gf_sticky_header_header_header_header_header_header_header_dart:63:28 '？。'具有类型的“小部件”，不包括null。 “ widgetsbinding”来自“软件包：flutter/src/widgets/binding.dart'（'/c：/flutter/packages/flutter/lib/src/src/widgets/binding.dart'）。 软件包：flutter/…/widgets/binding.dart：1 widgetsbinding.incance？endofframe.then（（_）{

gfstickyheader flie

class _GFStickyHeaderBuilderState extends State<GFStickyHeaderBuilder> {
  double? _stuckValue;

  @override
  Widget build(BuildContext context) => GFStickyHeader(
        enableHeaderOverlap: widget.enableHeaderOverlap,
        direction: widget.direction,
        stickyContentPosition: widget.stickyContentPosition,
        stickyContent: LayoutBuilder(
          builder: (context, _) =>
              widget.stickyContentBuilder(context, _stuckValue ?? 0.0),
        ),
        content: widget.content,
        callback: (double stuckValue) {
          if (_stuckValue != stuckValue) {
            _stuckValue = stuckValue;
            WidgetsBinding.instance?.endOfFrame.then((_) {
              if (mounted) {
                setState(() {});
              }
            });
          }
        },
      );
}```

Answer 1

• 您尝试通过Run Flutter升级来升级颤动，然后运行Flutter Pub Cache维修，祝您好运！