Could not restore app backups

[HanabishiRecca]

Please check before submitting an issue

• I know what my device, OS and App Manager versions are
• I know how to take logs
• I know how to reproduce the issue which may not be specific to my device

Describe the bug

Could not restore app backups anymore. As it worked before, I assume the breakage happened after update to LineageOS 23.2 which is based on Android 16 QPR2. The logs kinda imply that there is a problem communicating with the Android framework.

To Reproduce

1. Try to restore any app backup.

Expected behavior

Backups should be restored.

Screenshots

Backups could not be restored.

Logs

====> op=BACKUP_RESTORE, mode=RESTORE pkg=(net.thunderbird.android, 0)
io.github.muntashirakon.AppManager.backup.BackupException: Unknown error occurred
	at io.github.muntashirakon.AppManager.backup.RestoreOp.runRestore(RestoreOp.java:226)
	at io.github.muntashirakon.AppManager.backup.BackupManager.restore(BackupManager.java:189)
	at io.github.muntashirakon.AppManager.batchops.BatchOpsManager.lambda$restoreBackups$3$io-github-muntashirakon-AppManager-batchops-BatchOpsManager(BatchOpsManager.java:395)
	at io.github.muntashirakon.AppManager.batchops.BatchOpsManager$$ExternalSyntheticLambda2.run(D8$$SyntheticClass:0)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:520)
	at java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1154)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:652)
	at java.lang.Thread.run(Thread.java:1563)
Caused by: java.lang.NoSuchMethodError: No interface method clearApplicationUserData(Ljava/lang/String;Landroid/content/pm/IPackageDataObserver;I)V in class Landroid/content/pm/IPackageManager; or its super classes (declaration of 'android.content.pm.IPackageManager' appears in /system/framework/framework.jar)
	at io.github.muntashirakon.AppManager.compat.PackageManagerCompat.clearApplicationUserData(PackageManagerCompat.java:529)
	at io.github.muntashirakon.AppManager.compat.PackageManagerCompat.clearApplicationUserData(PackageManagerCompat.java:548)
	at io.github.muntashirakon.AppManager.backup.RestoreOp.restoreData(RestoreOp.java:506)
	at io.github.muntashirakon.AppManager.backup.RestoreOp.runRestore(RestoreOp.java:211)
	... 8 more

Device info

• Device:
• OS Version: LineageOS 23.2 / Android 16 QPR2
• App Manager Version: 4.0.5 (445)
• Mode: Root

Additional context

No response

[MuntashirAkon]

Looks like an API change in QPR2: https://github.com/LineageOS/android_frameworks_base/blob/ee7811df7c4760e4f92d474eee2ca23c1835d923/core/java/android/content/pm/IPackageManager.aidl#L507

[HanabishiRecca]

Yeah. Also confirmed by plain "Clear data" action not working too.

[4adbfa76]

====> op=BACKUP_RESTORE, mode=RESTORE pkg=(org.telegram.messenger, 0)
io.github.muntashirakon.AppManager.backup.BackupException: Unknown error occurred
	at io.github.muntashirakon.AppManager.backup.RestoreOp.runRestore(RestoreOp.java:226)
	at io.github.muntashirakon.AppManager.backup.BackupManager.restore(BackupManager.java:189)
	at io.github.muntashirakon.AppManager.batchops.BatchOpsManager.lambda$restoreBackups$3$io-github-muntashirakon-AppManager-batchops-BatchOpsManager(BatchOpsManager.java:395)
	at io.github.muntashirakon.AppManager.batchops.BatchOpsManager$$ExternalSyntheticLambda2.run(D8$$SyntheticClass:0)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:520)
	at java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1154)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:652)
	at java.lang.Thread.run(Thread.java:1563)
Caused by: java.lang.NoSuchMethodError: No interface method clearApplicationUserData(Ljava/lang/String;Landroid/content/pm/IPackageDataObserver;I)V in class Landroid/content/pm/IPackageManager; or its super classes (declaration of 'android.content.pm.IPackageManager' appears in /system/framework/framework.jar)
	at io.github.muntashirakon.AppManager.compat.PackageManagerCompat.clearApplicationUserData(PackageManagerCompat.java:529)
	at io.github.muntashirakon.AppManager.compat.PackageManagerCompat.clearApplicationUserData(PackageManagerCompat.java:548)
	at io.github.muntashirakon.AppManager.backup.RestoreOp.restoreData(RestoreOp.java:506)
	at io.github.muntashirakon.AppManager.backup.RestoreOp.runRestore(RestoreOp.java:211)
	... 8 more
====> op=BACKUP_RESTORE, mode=RESTORE pkg=(org.telegram.messenger, 0)
io.github.muntashirakon.AppManager.backup.BackupException: Unknown error occurred
	at io.github.muntashirakon.AppManager.backup.RestoreOp.runRestore(RestoreOp.java:226)
	at io.github.muntashirakon.AppManager.backup.BackupManager.restore(BackupManager.java:189)
	at io.github.muntashirakon.AppManager.batchops.BatchOpsManager.lambda$restoreBackups$3$io-github-muntashirakon-AppManager-batchops-BatchOpsManager(BatchOpsManager.java:395)
	at io.github.muntashirakon.AppManager.batchops.BatchOpsManager$$ExternalSyntheticLambda2.run(D8$$SyntheticClass:0)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:520)
	at java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1154)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:652)
	at java.lang.Thread.run(Thread.java:1563)
Caused by: java.lang.NoSuchMethodError: No interface method clearApplicationUserData(Ljava/lang/String;Landroid/content/pm/IPackageDataObserver;I)V in class Landroid/content/pm/IPackageManager; or its super classes (declaration of 'android.content.pm.IPackageManager' appears in /system/framework/framework.jar)
	at io.github.muntashirakon.AppManager.compat.PackageManagerCompat.clearApplicationUserData(PackageManagerCompat.java:529)
	at io.github.muntashirakon.AppManager.compat.PackageManagerCompat.clearApplicationUserData(PackageManagerCompat.java:548)
	at io.github.muntashirakon.AppManager.backup.RestoreOp.restoreData(RestoreOp.java:506)
	at io.github.muntashirakon.AppManager.backup.RestoreOp.runRestore(RestoreOp.java:211)
	... 8 more

Same issue here.

[kurtnettle]

To future readers: If you have no other option and need to restore user data on API 36+ / A16, you can use my build (read the release note for more details). This is only meant for emergency + temporary data recovery when you cannot roll back to A15 like me.

Tonight was an absolute disaster for me. I almost thought I lost some of my important app data. Luckily, I somehow managed to create a fix and restored some of my important apps successfully.

[HanabishiRecca]

I almost thought I lost some of my important app data.

Lost? Extracting data from AppManager's backups manually is not that hard, they are just archives with files.
The only tricky moment is to set right ownership for the files after restoring them, as user numbers will likely change on new system.

[kurtnettle]

backups manually is not that hard

You are correct. I have done manual app data restore multiple times, but this time I had many apps to restore (just flashed new custom ROM), so I thought it would be better to focus on fixing the AppManager rather than the manual restore.

[HanabishiRecca]

Of course having it working in the app is obviously more convinient. Great job fixing it.
What I meant is that the remark about data being lost is a bit too dramatic.

[kurtnettle]

data being lost is a bit too dramatic.

Now that I am reading my comment again, it does sound a bit dramatic, NGL. I got very panicked actually at the moment. Also the manual restore failed for me in the past many times. So, combining all my experiences, I thought I really lost the data (without even trying to restore in the first place).

[MuntashirAkon]

You have indeed raised an interesting topic. Although the backup itself is very simple and tested quite thoroughly including automated testing, ideally I should add a verification step after creating a backup to make sure that the backup itself is valid. Currently, I only do this during restoring, but this should be done during backups too.

[4adbfa76]

When is it likely for this issue to be resolved because I will like to format my phone but I won't be able to restore apps if I do that.

[4adbfa76]

To future readers: If you have no other option and need to restore user data on API 36+ / A16, you can use my build (read the release note for more details). This is only meant for emergency + temporary data recovery when you cannot roll back to A15 like me.

Tonight was an absolute disaster for me. I almost thought I lost some of my important app data. Luckily, I somehow managed to create a fix and restored some of my important apps successfully.

Root access granted but it's not getting applied in the app.

[MuntashirAkon]

When is it likely for this issue to be resolved because I will like to format my phone but I won't be able to restore apps if I do that.

A migration to a new version of Android roughly takes 80 hours alone as it is necessary to revise entire hidden API library to make sure everything is compatible with the new version.

[ThePatientLion]

Hello Everyone,

I also have the same problem with not being able to restore backups. Interesting thing is, that it happened after updating to newest version of crDroid (11.15 from April 11th), which is still based on Android 15 (not A16QPR2!).

Thank you so much @kurtnettle, your version works! I must admit I also got nervous, because I don't know how to manually restore. Very generous of you to share your quick fix with all of us, until @MuntashirAkon finds time to update his great AppManager.

@MuntashirAkon: it's unbelievable how much time you already invested in your amazing AppManager, thank you so much!!! Sorry to hear it takes you another 80 hours to fully adapt it to new Android version.

All the best :-)

[MuntashirAkon]

Interesting thing is, that it happened after updating to newest version of crDroid (11.15 from April 11th), which is still based on Android 15 (not A16QPR2!).

They started changing APIs in Android 15 r20.