[Bug]: App Crash reported in firebase, and seen in person

[RemiHin]

Required Reading

• Confirmed

Plugin Version

5.0.3

Mobile operating-system(s)

• iOS
• Android

Device Manufacturer(s) and Model(s)

Samsung S25, Xiaomi 15, Samsung S24 Ultra, Samsung S23, Galaxy Z Flip6, OnePlus 13, Galaxy S25 Ultra

Device operating-systems(s)

Android 16

React Native / Expo version

0.83.2

What happened?

I have seen one case of this several times on my wifes phone, she activated the plugin, then put the app in the background, then when returning the app to the foreground after a while the app first seems to freeze, then after a couple of seconds, the app crashes.

This is the log from firebase. I have seen this error a lot since updating the package to 5.0.3

Plugin Code and/or Config

{
            
            desiredAccuracy: BackgroundGeolocation.DESIRED_ACCURACY_HIGH,
            preventSuspend: true,
            pausesLocationUpdatesAutomatically: false,
            distanceFilter: 5,
            fastestLocationUpdateInterval: 3000,
            locationUpdateInterval: 5000,

            disableElasticity: true,
            elasticityMultiplier: 2,
            stationaryRadius: 10,
            stopTimeout: 5, // 5 minutes
            triggerActivities: 'on_foot, walking, running',

            heartbeatInterval: 60,

            enableHeadless: false,
            stopOnTerminate: true,
            startOnBoot: false,

            activityType: BackgroundGeolocation.ACTIVITY_TYPE_FITNESS,

            locationAuthorizationRequest: 'Always',
            locationAuthorizationAlert: {
                titleWhenInUse: i18n.t('permissions.locationAlert.titleWhenInUse'),
                titleWhenOff: i18n.t('permissions.locationAlert.titleWhenOff'),
                instructions: i18n.t('permissions.locationAlert.instructions'),
                cancelButton: i18n.t('permissions.locationAlert.cancelButton'),
                settingsButton: i18n.t('permissions.locationAlert.settingsButton'),
            },

            foregroundService: true,
            notification: {
                title: 'WandelWeb',
                text: currentNotificationTextRef.current,
                priority: BackgroundGeolocation.NOTIFICATION_PRIORITY_MAX, // Highest priority
                channelName: 'WandelWeb GPS Tracking',
                sticky: true,
                ongoing: true, // Makes it harder to dismiss
                smallIcon: 'ic_launcher',
                largeIcon: 'ic_launcher',
                color: '#4CAF50'
            },

            // Batterij optimalisaties
            saveBatteryOnBackground: false,
            logLevel: BackgroundGeolocation.LOG_LEVEL_OFF,

            backgroundPermissionRationale: {
                title: i18n.t('permissions.backgroundRationale.title'),
                message: i18n.t('permissions.backgroundRationale.message'),
                positiveAction: i18n.t('permissions.backgroundRationale.positiveAction'),
                negativeAction: i18n.t('permissions.backgroundRationale.negativeAction'),
            },

            debug: false,
        }

Relevant log output

Fatal Exception: java.util.ConcurrentModificationException:
       at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1111)
       at java.util.ArrayList$Itr.next(ArrayList.java:1064)
       at com.transistorsoft.locationmanager.lifecycle.LifecycleManager.c(r8-map-id-790b64259fb0934ba91077229d71609bb1a84d45f3c741a7714bb010b1bb7004:8)
       at com.transistorsoft.locationmanager.lifecycle.LifecycleManager$b.run(r8-map-id-790b64259fb0934ba91077229d71609bb1a84d45f3c741a7714bb010b1bb7004:3)
       at android.os.Handler.handleCallback(Handler.java:995)
       at android.os.Handler.dispatchMessage(Handler.java:103)
       at android.os.Looper.loopOnce(Looper.java:267)
       at android.os.Looper.loop(Looper.java:360)
       at android.app.ActivityThread.main(ActivityThread.java:10088)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:616)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1113)

[christocracy]

this will take a few minutes

cd android
./gradlew app:dependencies --refresh-dependencies | grep tslocationmanager

you want to see:

|    +--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20

[RemiHin]

@christocracy thanks.

this is the result:

|    \--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20
|    \--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20
+--- com.transistorsoft:tslocationmanager:{strictly 4.0.20} -> 4.0.20 (c)
|    \--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20
+--- com.transistorsoft:tslocationmanager:{strictly 4.0.20} -> 4.0.20 (c)
|    +--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20
|    \--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20
+--- com.transistorsoft:tslocationmanager:{strictly 4.0.20} -> 4.0.20 (c)
|    +--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20
|    +--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20
|    \--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20
+--- com.transistorsoft:tslocationmanager:{strictly 4.0.20} -> 4.0.20 (c)
|    +--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20
|    \--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20
+--- com.transistorsoft:tslocationmanager:{strictly 4.0.20} -> 4.0.20 (c)
|    +--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20
|    \--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20
+--- com.transistorsoft:tslocationmanager:{strictly 4.0.20} -> 4.0.20 (c)
|    +--- com.transistorsoft:tslocationmanager:4.0.+ -> 4.0.20

Rebuilding the app should have this fixed now?

[christocracy]

Rebuilding the app should have this fixed now?

Try it and see. Close your issue if so.

[github-actions]

This issue is stale because it has been open for 30 days with no activity.

[RemiHin]

This seems to have fixed the issue. Have not seen this anymore. Thanks