Operand of null-aware operation ‘!‘ has type ‘SchedulerBinding‘ which excludes null.

Error report as shown in the figure

…/…/Documents/flutter/.pub-cache/hosted/pub.flutter-io.cn/animations-2.0.2/lib/src/open_container.dart:631:24: Warning: Operand of null-aware operation ‘!’ has type ‘SchedulerBinding’ which excludes null.

• ‘SchedulerBinding’ is from ‘package:flutter/src/scheduler/binding.dart’ (‘…/…/Documents/flutter/packages/flutter/lib/src/scheduler/binding.dart’).
  SchedulerBinding.instance!

reason

yes animations The version of the library is low , You need to update

Repair

Increase the version number to large enough , I add here to 2.0.3 That's all right.