fishy20

- Operating system: linux - Version: 1.19.2 ### Exception Null check operator used on a null value ### StackTrace #0 RenderSliverMultiBoxAdaptor.childMainAxisPosition (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:568) #1 RenderSliverHelpers.applyPaintTransformForBoxChild (package:flutter/src/rendering/sliver.dart:1803) #2 RenderSliverMultiBoxAdaptor.applyPaintTransform (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:597) #3 RenderObject.getTransformTo...