Solved —Error: The non-abstract class ‘InternalSelectableMathState’

After updating Flutter version from 2.5.3 to 2.8.

Flutter Developer

·

Follow

1 min read

·

Dec 16, 2021

--

Share

Error:

../../AppData/Local/Pub/Cache/hosted/pub.dartlang.org/flutter_math_fork-0.3.3+1/lib/src/widgets/selectable.dart:407:7: Error: The non-abstract class 'InternalSelectableMathState' is missing implementations for these members:
 - TextSelectionDelegate.copySelection
 - TextSelectionDelegate.cutSelection
 - TextSelectionDelegate.pasteText
 - TextSelectionDelegate.selectAll
Try to either
 - provide an…