* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.

* 문제 해결을 위해 어떤 시도를 해보았는지 구체적으로 함께 알려주세요.

디버깅시.. 화면이 아래와 같이 나오지 않고 오류가 발생하는데 어떻게 조치해야 할까요?

작성한 코드 및 에러 메세지

E/flutter ( 3424): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: Cannot hit test a render box that has never been laid out.

E/flutter ( 3424): The hitTest() method was called on this RenderBox: RenderStack#a8f8b NEEDS-LAYOUT NEEDS-PAINT:

E/flutter ( 3424): creator: Stack ← _FloatingActionButtonTransition ← MediaQuery ← LayoutId-[<_ScaffoldSlot.floatingActionButton>] ← CustomMultiChildLayout ← _ActionsMarker ← Actions ← AnimatedBuilder ← DefaultTextStyle ← AnimatedDefaultTextStyle ← _InkFeatures-[GlobalKey#78571 ink renderer] ← NotificationListener<LayoutChangedNotification> ← ⋯

E/flutter ( 3424): parentData: offset=Offset(0.0, 0.0); id=_ScaffoldSlot.floatingActionButton

E/flutter ( 3424): constraints: MISSING

E/flutter ( 3424): size: MISSING

E/flutter ( 3424): alignment: Alignment.centerRight

E/flutter ( 3424): textDirection: ltr

E/flutter ( 3424): fit: loose

E/flutter ( 3424): Unfortunately, this object's geometry is not known at this time, probably because it has never been laid out. This means it cannot be accurately hit-tested.

E/flutter ( 3424): If you are trying to perform a hit test during the layout phase itself, make sure you only hit test nodes that have completed layout (e.g. the node's children, after their layout() method has been called).