[Bug]: Invalid notification (no valid small icon)

[Mojo1917]

Please check the following before submitting a new issue.

• I have searched the existing issues.
• I have carefully read the documentation and verified I have added the required platform specific configuration.

Please select affected platform(s)

• Android
• iOS
• Linux
• macOS
• Web
• Windows

Steps to reproduce

I am using the following settings to obtain the device's location:

return AndroidSettings(
          accuracy: LocationAccuracy.best,
          distanceFilter: 2,
          intervalDuration: const Duration(seconds: 2),
          foregroundNotificationConfig: ForegroundNotificationConfig(
            notificationChannelName:
                localizations.userRecordingNotificationTitle,
            notificationText: localizations.userRecordingNotificationText,
            notificationTitle: localizations.userRecordingNotificationTitle,
            enableWakeLock: false,
            setOngoing: true,
            notificationIcon: const AndroidResource(
                name: "ic_notification", defType: "drawable"),
          ));

• The ic_notification asset is a 96x96 PNG image with an alpha channel.
• The asset is placed directly in the drawable folder.

I found this related issue #1258

Expected results

• The notification should be displayed correctly without causing an exception.
• On my Pixel 5 test device, the notification appears as expected, and the icon is visible.

Actual results

• A crash is reported with the following error message: PlatformException(error, Invalid notification (no valid small icon): Notification(channel=geolocator_channel_01 shortcut=null contentView=null vibrate=null sound=null defaults=0 flags=ONGOING_EVENT color=0x00000000 vis=PRIVATE), null, null). Error thrown .
• Based on the Crashlytics report, it appears that Geolocator is using the fused location provider
• The issue has been reported on a Pixel 9 device.

Code sample

For code, please see above. I am not able to reproduce the crash on my devices.

Screenshots or video

No response

Version

13.0.2

Flutter Doctor output

Doctor output

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.29.1, on macOS 15.3.1 24D70 darwin-arm64, locale de-DE)
[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 16.2)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2024.3)
[✓] VS Code (version 1.98.0)
[✓] Connected device (4 available)
[✓] Network resources

[TimHoogstrate]

Dear @Mojo1917,

Can you add your manifest content settings to this issue (like targetSDK and compileSDK)?

Kind regards,

[Mojo1917]

I found a fix to the problem. Switching to android:launchMode="singleTask" from singletop in the manifest solved the problem for me.