Flutter app throws so many exceptions about concurrent modification during iteration of a GrowableList #131415
Description
Since my team released our flutter app on the store, Crashlytics is noticing us so many exception about concurrent modification during iteration of a GrowableList (actually is the n.1 issue for number of occurrences).
Exception:
Exception: io.flutter.plugins.firebase.crashlytics.FlutterError: Concurrent modification during iteration: Instance(length:2) of '_GrowableList'.
at ListIterator.moveNext(dart:_internal)
at SchedulerBinding.handleDrawFrame(binding.dart:1213)
at SchedulerBinding._handleDrawFrame(binding.dart:1072)
Actually it seems to be not a bug into our application, but rather a problem related to Flutter source code:
binding.dart:1213
flutter doctor -v output:
[✓] Flutter (Channel stable, 3.10.6, on macOS 13.2 22D49 darwin-arm64, locale it-IT)
• Flutter version 3.10.6 on channel stable at /Users/user/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision f468f3366c (2 weeks ago), 2023-07-12 15:19:05 -0700
• Engine revision cdbeda788a
• Dart version 3.0.6
• DevTools version 2.23.1
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
• Android SDK at /Users/user/Library/Android/sdk
• Platform android-33, build-tools 30.0.3
• ANDROID_HOME = /Users/user/Library/Android/sdk
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 14.2)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 14C18
• CocoaPods version 1.11.3
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2022.1)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)
[✓] VS Code (version 1.75.0)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension can be installed from:
🔨 https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[✓] Connected device (2 available)
• macOS (desktop) • macos • darwin-arm64 • macOS 13.2 22D49 darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 114.0.5735.248
[✓] Network resources
• All expected network resources are available.
• No issues found!