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                                            Chetan Nager

[ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: 'package:flutter/src/widgets/overlay.dart': Failed assertion: line 147 pos 12: '_overlay != null': is not true.

invoking the ToastContext().init(context) in StatefulWidget I got another error E/flutter ( 8513): [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: Null check operator used on a null value Source Code: Toast.show(msg, duration: Toast.lengthLong, gravity: Toast.bottom);