flutter sentry The function 'runZonedGuarded' isn't defined

Question

I am trying to add sentry in my flutter project. From the documentation, i see I have to do it like this

runZonedGuarded(
 () => runApp(MyApp(flutterI18nDelegate)),
   (error, stackTrace) {
try {
  sentry.captureException(
    exception: error,
    stackTrace: stackTrace,
  );
  print('Error sent to sentry.io: $error');
} catch (e) {
  print('Sending report to sentry.io failed: $e');
  print('Original error: $error');
}
});

But I am getting this error

The function 'runZonedGuarded' isn't defined. Try importing the library that defines 'runZonedGuarded', correcting the name to the name of an existing function, or defining a function named

Thank you.

My dart and flutter version

Flutter 1.20.2 • channel beta • https://github.com/flutter/flutter.git
Framework • revision bbfbf1770c (8 weeks ago) • 2020-08-13 08:33:09 -0700
Engine • revision 9d5b21729f

Tools • Dart 2.9.1

Answer 1

runZonedGuarded is defined on dart:async.

The complete snippet is:

import 'dart:async'; 

// Wrap your 'runApp(MyApp())' as follows:

void main() async {
  runZonedGuarded(
    () => runApp(MyApp()),
    (error, stackTrace) {
      await sentry.captureException(
        exception: error,
        stackTrace: stackTrace,
      );
    },
  );
}

We've added to the docs.