Nextcloud Notes Android app stopped syncing to NextCloud

This issue respects the following points:

• I have read the FAQ
• I have searched for existing issues
• The issue affects the Notes Android app, neither the Notes server app nor the Nextcloud Android app.

Describe the bug

1. Open Notes app (regardless whether the Nextcloud app is running or not) and see the notes
2. Change some note
3. See the resulting sync error (see attachment)

Expected behavior

Notes app should display all notes (that does happen) and sync them (that does not happen). For several weeks this has worked flawlessly, but two days ago this error sprung up.

Notes Android version

4.5.2 (german, latest)

Notes server version

31.0.7

Nextcloud Android version

3.34.1

Nextcloud version

31.0.7

Device

Fairphone 2

Android Version

10.23.02.0-rel.0

App Store

• Google Play Store
• F-Droid
• Huawei App Gallery

Stacktrace

App Version: 4.5.2
App Version Code: 40050290
App Flavor: fdroid

Files App Version Code: 30340190 (PROD)

---

OS Version: 3.4.113-perf-ge8679ce1538(sibon-9bba2609)
OS API Level: 29
Device: FP2
Manufacturer: Fairphone
Model (and Product): FP2 (FP2)

---

java.lang.Exception: Der Authentifizierungs-Token stimmt nicht überein oder dem Paketnamen fehlt die Berechtigung für diese Aktion[com.nextcloud.android.sso.api.AidlNetworkRequest.performNetworkRequestV2(AidlNetworkRequest.java:179), com.nextcloud.android.sso.api.NextcloudAPI.performNetworkRequestV2(NextcloudAPI.java:159), com.nextcloud.android.sso.helper.Retrofit2Helper$1.execute(Retrofit2Helper.java:53), it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.pushLocalChanges(NotesServerSyncTask.java:130), it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.run(NotesServerSyncTask.java:99), java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:462), java.util.concurrent.FutureTask.run(FutureTask.java:266), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641), java.lang.Thread.run(Thread.java:919)]
	at it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.pushLocalChanges(NotesServerSyncTask.java:150)
	at it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.run(NotesServerSyncTask.java:99)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:462)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.lang.Thread.run(Thread.java:919)


java.lang.Exception: Der Authentifizierungs-Token stimmt nicht überein oder dem Paketnamen fehlt die Berechtigung für diese Aktion[com.nextcloud.android.sso.api.AidlNetworkRequest.performNetworkRequestV2(AidlNetworkRequest.java:179), com.nextcloud.android.sso.api.NextcloudAPI.performNetworkRequestV2(NextcloudAPI.java:159), com.nextcloud.android.sso.helper.Retrofit2Helper$1.execute(Retrofit2Helper.java:53), it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.pushLocalChanges(NotesServerSyncTask.java:130), it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.run(NotesServerSyncTask.java:99), java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:462), java.util.concurrent.FutureTask.run(FutureTask.java:266), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641), java.lang.Thread.run(Thread.java:919)]
	at it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.pushLocalChanges(NotesServerSyncTask.java:150)
	at it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.run(NotesServerSyncTask.java:99)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:462)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.lang.Thread.run(Thread.java:919)


java.lang.RuntimeException: com.nextcloud.android.sso.exceptions.TokenMismatchException: Der Authentifizierungs-Token stimmt nicht überein oder dem Paketnamen fehlt die Berechtigung für diese Aktion
	at io.reactivex.internal.util.ExceptionHelper.wrapOrThrow(ExceptionHelper.java:46)
	at io.reactivex.internal.observers.BlockingMultiObserver.blockingGet(BlockingMultiObserver.java:93)
	at io.reactivex.Maybe.blockingGet(Maybe.java:2321)
	at io.reactivex.Observable.blockingSingle(Observable.java:5381)
	at it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.pullRemoteChanges(NotesServerSyncTask.java:229)
	at it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.run(NotesServerSyncTask.java:101)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:462)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.lang.Thread.run(Thread.java:919)
Caused by: com.nextcloud.android.sso.exceptions.TokenMismatchException: Der Authentifizierungs-Token stimmt nicht überein oder dem Paketnamen fehlt die Berechtigung für diese Aktion
	at com.nextcloud.android.sso.api.AidlNetworkRequest.performNetworkRequestV2(AidlNetworkRequest.java:179)
	at com.nextcloud.android.sso.api.NextcloudAPI.performNetworkRequestV2(NextcloudAPI.java:159)
	at com.nextcloud.android.sso.api.NextcloudAPI.lambda$performRequestObservableV2$0(NextcloudAPI.java:97)
	at com.nextcloud.android.sso.api.NextcloudAPI.$r8$lambda$af7W9mq2B0ZrhVJwZd-ibFp8T3Y(Unknown Source:0)
	at com.nextcloud.android.sso.api.NextcloudAPI$$ExternalSyntheticLambda1.subscribe(D8$$SyntheticClass:0)
	at io.reactivex.internal.operators.observable.ObservableFromPublisher.subscribeActual(ObservableFromPublisher.java:31)
	at io.reactivex.Observable.subscribe(Observable.java:12284)
	at io.reactivex.internal.operators.observable.ObservableSingleMaybe.subscribeActual(ObservableSingleMaybe.java:31)
	at io.reactivex.Maybe.subscribe(Maybe.java:4290)
	at io.reactivex.Maybe.blockingGet(Maybe.java:2320)
	... 8 more

Start with the stack trace in NotesServerSyncTask, especially pushLocalChanges and pullRemoteChanges, and trace the AidlNetworkRequest token error from the Nextcloud Android SSO calls. Reproduce syncing with Notes 4.5.2, Nextcloud Android 3.34.1, and server 31.0.7. Done means local note changes sync without the token-mismatch error.