Warnings arise on Flutter 3 Update

[umerbutt03]

../../flutter/.pub-cache/hosted/pub.dartlang.org/charts_flutter-0.12.0/lib/src/chart_container.dart:205:27: Warning: Operand of
null-aware operation '!' has type 'SchedulerBinding' which excludes null.

• 'SchedulerBinding' is from 'package:flutter/src/scheduler/binding.dart'
  ('../../flutter/packages/flutter/lib/src/scheduler/binding.dart').
  if (!SchedulerBinding.instance!.hasScheduledFrame) {
  ^
  ../../flutter/.pub-cache/hosted/pub.dartlang.org/charts_flutter-0.12.0/lib/src/chart_container.dart:206:24: Warning: Operand of
  null-aware operation '!' has type 'SchedulerBinding' which excludes null.
• 'SchedulerBinding' is from 'package:flutter/src/scheduler/binding.dart'
  ('../../flutter/packages/flutter/lib/src/scheduler/binding.dart').
  SchedulerBinding.instance!.scheduleFrame();
  ^
  ../../flutter/.pub-cache/hosted/pub.dartlang.org/charts_flutter-0.12.0/lib/src/chart_container.dart:209:22: Warning: Operand of
  null-aware operation '!' has type 'SchedulerBinding' which excludes null.
• 'SchedulerBinding' is from 'package:flutter/src/scheduler/binding.dart'
  ('../../flutter/packages/flutter/lib/src/scheduler/binding.dart').
  SchedulerBinding.instance!.addPostFrameCallback(startAnimationController);
  ^
  ../../flutter/.pub-cache/hosted/pub.dartlang.org/charts_flutter-0.12.0/lib/src/chart_container.dart:232:22: Warning: Operand of
  null-aware operation '!' has type 'SchedulerBinding' which excludes null.
• 'SchedulerBinding' is from 'package:flutter/src/scheduler/binding.dart'
  ('../../flutter/packages/flutter/lib/src/scheduler/binding.dart').
  SchedulerBinding.instance!.addPostFrameCallback(doRebuild);

[LeoAiolia]

same issue, in flutter 3.0.3

[Carlit0]

#765 seems to fix this

[trojancode]

Use this package.
https://pub.dev/packages/charts_flutter_new

It's a fixed version of charts_flutter