1.10.29 - Compilation Error: missing null operator in flushbar.dart

[TammiLion]

Getting the following compilation error for 1.10.29 (does not occur in 1.10.28). Probably just needs a ? operator.

`../../Flutter/flutter/.pub-cache/hosted/pub.dartlang.org/another_flushbar-1.10.29/lib/flushbar.dart:350:31: Error: Method 'addPostFrameCallback' cannot be called on 'SchedulerBinding?' because it is potentially null.

• 'SchedulerBinding' is from 'package:flutter/src/scheduler/binding.dart' ('../../Flutter/flutter/packages/flutter/lib/src/scheduler/binding.dart').
  Try calling using ?. instead.
  SchedulerBinding.instance.addPostFrameCallback(
  ^^^^^^^^^^^^^^^^^^^^`

[utkudenis]

it is because of flutter 3. You should update your flutter sdk

[moradiyajay]

it there another solution except for @utkudenis suggestion because I can't flutter SDK

it is because of flutter 3. You should update your flutter sdk