Warning: Operand of null-aware operation

[Paroca72]

With flutter 3.0 I started to have a warning about null-aware operation.

/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/section_view-2.0.5/lib/src/sectionViewAlphabetList.dart:43:24: Warning: Operand of null-aware operation '?.' has type 'WidgetsBinding' which excludes null.

• 'WidgetsBinding' is from 'package:flutter/src/widgets/binding.dart' ('/C:/Program%20Files/flutter/packages/flutter/lib/src/widgets/binding.dart').
  WidgetsBinding.instance?.addPostFrameCallback((_) {

Thanks

[robert-luoqing]

Resolved