In this article we are going to see how to solve Flutter Zone mismatch error without any package (Sentry) after migration to 3.10.
What is Zone ?
Zones are a mechanism for managing callbacks in Dart. While primarily useful for overriding print and Timer logic in tests, and for catching errors in tests, they are sometimes used for scoping global variables to certain parts of an application
Problems encountered before migrating to version 3.10
Flutter requires (and has always required) that all framework code be run in the same zone. Notably, this means that calls to WidgetsFlutterBinding.ensureInitialized() should be run in the same zone as calls to runApp() .
Flutter has not detected such mismatches, This sometimes leads to obscure and hard-to-debug issues.
What’s new in Flutter 3.10
The Flutter framework detects mismatches when using Zones and reports them to the console in debug builds.
Starting with Flutter 3.10, a non-fatal warning is printed in debug builds when a mismatch is detected. The warning looks like the following.
Since the Flutter binding is Initialized in a different zone, we will encounter a warning due to the zone mismatch.
To solve that issue, we need to Initialize the Flutter Bindings in the same zone
Final Thoughts!
To optimise performance, it is advisable to avoid unnecessary reliance on external packages or libraries for problem-solving.
Thanks !!
