sentry_flutter: ^6.5.1 and feedback: ^2.5.0

sentry_issue.dart

import 'dart:async';

import 'package:feedback/feedback.dart';
import 'package:flutter/material.dart';
import 'package:sentry_flutter/sentry_flutter.dart';

Future<void> main() async {
  final navigatorKey = GlobalKey<NavigatorState>();

  final appRunner = MyApp(navigatorKey: navigatorKey);

  FlutterError.onError = (FlutterErrorDetails details) async {
    if (navigatorKey.currentContext != null) {
      BetterFeedback.of(navigatorKey.currentContext!)
          .show((UserFeedback feedback) async {
        final eventId = await Sentry.captureException(
          details.exception,
          stackTrace: details.stack,
          withScope: (scope) {
            scope.addAttachment(SentryAttachment.fromUint8List(
              feedback.screenshot,
              'screenshot.png',
              contentType: 'image/png',
            ));
          },
        );
        await Sentry.captureUserFeedback(SentryUserFeedback(
          eventId: eventId,
          name: 'Sample Name',
          email: 'Sample Email',
          comments: feedback.text,
        ));
      });
    } else {
      await Sentry.captureException(
        details.exception,
        stackTrace: details.stack,
      );
    }
  };
  await SentryFlutter.init(
    (options) => {
      options
        ..dsn = 'SentryDsn',
    },
  );
  runApp(BetterFeedback(child: appRunner));
}

class MyApp extends StatelessWidget {
  final GlobalKey<NavigatorState>? navigatorKey;

  const MyApp({
    Key? key,
    required this.navigatorKey,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      navigatorKey: navigatorKey,
      title: 'Flutter Demo',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  final String? title;

  const MyHomePage({
    Key? key,
    this.title,
  }) : super(key: key);

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    if (widget.title == null) {
      throw 'Title is null';
    }
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title!),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            const Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headline4,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ),
    );
  }
}