Upgrading to Flutter 3.0 shows warning

SankethBK / local_session_timeout

Redirect user to authentication page if the application doesn't receive any user interaction, or been running in the background for "x" duration.

BSD 3-Clause "New" or "Revised" License

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Error Message /D:/flutter_windows_3.0.3-stable/.pub-cache/hosted/pub.dartlang.org/local_session_timeout-0.2.0/lib/src/session_timeout_manager.dart:35:20: Warning: Operand of null-aware operation '?.' has type 'WidgetsBinding' which excludes null.

'WidgetsBinding' is from 'package:flutter/src/widgets/binding.dart' ('/D:/flutter_windows_3.0.3-stable/packages/flutter/lib/src/widgets/binding.dart'). package:flutter/…/widgets/binding.dart:1 WidgetsBinding.instance?.addObserver(this);

Because of this warning, when session timeout has ended it is not navigating to Login Page.

SankethBK / local_session_timeout

Upgrading to Flutter 3.0 shows warning #2