Recursion during print() call.Abort adding print() call as Breadcrumb.

[lmt20]

Platform

Flutter Web

Obfuscation

Enabled

Debug Info

Enabled

Doctor

[!] Flutter (Channel [user-branch], 3.24.5, on macOS 15.1 24B83 darwin-arm64, locale en-VN)
    ! Flutter version 3.24.5 on channel [user-branch] at /Users/truonglemanh/flutter
      Currently on an unknown channel. Run `flutter channel` to switch to an official channel.
      If that doesn't fix the issue, reinstall Flutter by following instructions at https://flutter.dev/setup.
    ! Upstream repository unknown source is not a standard remote.
      Set environment variable "FLUTTER_GIT_URL" to unknown source to dismiss this error.
    • Framework revision dec2ee5c1f (9 weeks ago), 2024-11-13 11:13:06 -0800
    • Engine revision a18df97ca5
    • Dart version 3.5.4
    • DevTools version 2.37.3
    • If those were intentional, you can disregard the above warnings; however it is recommended to use "git" directly to perform update checks and
      upgrades.

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/truonglemanh/Library/Android/sdk
    • Platform android-34, build-tools 34.0.0
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b802.4-9586694)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 16.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 16B40
    • CocoaPods version 1.15.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2022.2)
    • 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 17.0.6+0-17.0.6b802.4-9586694)

[✓] VS Code (version 1.96.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.102.0

[✓] Connected device (3 available)
    • macOS (desktop)                 • macos                 • darwin-arm64   • macOS 15.1 24B83 darwin-arm64
    • Mac Designed for iPad (desktop) • mac-designed-for-ipad • darwin         • macOS 15.1 24B83 darwin-arm64
    • Chrome (web)                    • chrome                • web-javascript • Google Chrome 132.0.6834.84
    ! Error: Browsing on the local area network for it’s iPad. Ensure the device is unlocked and attached with a cable or associated with the same
      local area network as this Mac.
      The device must be opted into Developer Mode to connect wirelessly. (code -27)

[✓] Network resources
    • All expected network resources are available.

Version

8.12.0

Steps to Reproduce

When integrating Sentry into a Flutter web project, using the print command causes an error:

Recursion during print() call. Abort adding print() call as Breadcrumb.  

Expected Result

Breadcrumbs should log crash events without interfering with the print command.

Actual Result

The print command fails and throws the following error in the console:

Recursion during print() call. Abort adding print() call as Breadcrumb.  

Would you like me to provide a possible solution for this issue?

Are you willing to submit a PR?

None

[buenaflor]

hey, can you provide us with the init code snippet

[denrase]

This error is thrown due to our recursion detection when adding breadcrumbs for print statements.

if (userPrint != null) {
    userPrint(self, parent, zone, line);
}
if (!options.enablePrintBreadcrumbs || !hub.isEnabled) {
    // early bail out, in order to better guard against the recursion
    // as described below.
    parent.print(zone, line);
    return;
}
if (_isPrinting) {
    // We somehow landed in a recursion.
    // This happens for example if:
    // - hub.addBreadcrumb() called print() itself
    // - This happens for example if hub.isEnabled == false and
    //   options.logger == dartLogger
    //
    // Anyway, in order to not cause a stack overflow due to recursion
    // we drop any further print() call while adding a breadcrumb.
    parent.print(
        zone,
        'Recursion during print() call.'
        'Abort adding print() call as Breadcrumb.',
    );
    return;
}

We still do the user print, but we do not add a breadcrumb in this case anymore.