../../../.pub-cache/hosted/pub.dartlang.org/extended_text_library-4.0.3/lib/src/selection/cupertino_text_selection_controls.dart:788:7: Error: The non-abstract class 'ExtendedCupertinoTextSelectionToolbarItemsElement' is missing implementations for these members:
- RenderObjectElement.insertChildRenderObject
- RenderObjectElement.moveChildRenderObject
- RenderObjectElement.removeChildRenderObject
Try to either
- provide an implementation,
- inherit an implementation from a superclass or mixin,
- mark the class as abstract, or
- provide a 'noSuchMethod' implementation.
class ExtendedCupertinoTextSelectionToolbarItemsElement
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
../../flutter_prototype/packages/flutter/lib/src/widgets/framework.dart:5747:8: Context: 'RenderObjectElement.insertChildRenderObject' is defined here.
void insertChildRenderObject(covariant RenderObject child, covariant dynamic slot);
^^^^^^^^^^^^^^^^^^^^^^^
../../flutter_prototype/packages/flutter/lib/src/widgets/framework.dart:5764:8: Context: 'RenderObjectElement.moveChildRenderObject' is defined here.
void moveChildRenderObject(covariant RenderObject child, covariant dynamic slot);
^^^^^^^^^^^^^^^^^^^^^
../../flutter_prototype/packages/flutter/lib/src/widgets/framework.dart:5770:8: Context: 'RenderObjectElement.removeChildRenderObject' is defined here.
void removeChildRenderObject(covariant RenderObject child);
here's the erro when i use the latest version