App crash: Couldn't create Paper dir ...EventDatabase

[Matej-Hlatky]

Hello,
Android app crashes, when using Exponea SDK -- Couldn't create Paper dir:

Fatal Exception: java.lang.RuntimeException: Couldn't create Paper dir: /data/user/0/XXXX/files/EventDatabase
       at io.paperdb.DbStoragePlainFile.createPaperDir(DbStoragePlainFile.java:325)
       at io.paperdb.DbStoragePlainFile.assertInit(DbStoragePlainFile.java:316)
       at io.paperdb.DbStoragePlainFile.deleteIfExists(DbStoragePlainFile.java:211)
       at io.paperdb.Book.delete(Book.java:116)
       at com.exponea.sdk.database.ExponeaDatabaseImpl.remove(ExponeaDatabaseImpl.kt:57)
       at com.exponea.sdk.repository.EventRepositoryImpl.remove(EventRepositoryImpl.kt:27)
       at com.exponea.sdk.manager.FlushManagerImpl.onEventSentSuccess(FlushManagerImpl.kt:115)
       at com.exponea.sdk.manager.FlushManagerImpl.access$onEventSentSuccess(FlushManagerImpl.kt:12)
       at com.exponea.sdk.manager.FlushManagerImpl$trackCustomer$1.invoke(FlushManagerImpl.kt:95)
       at com.exponea.sdk.manager.FlushManagerImpl$trackCustomer$1.invoke(FlushManagerImpl.kt:12)
       at com.exponea.sdk.util.ExtensionsKt$enqueue$1.onResponse(Extensions.kt:22)
       at okhttp3.RealCall$AsyncCall.execute(RealCall.java:153)
       at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
       at java.lang.Thread.run(Thread.java:764)

Exponea SDK versions: v1.1.7 and v2.2.3; both versions uses Paperdb v2.6
Android versions: 4.4.4, 5.1, 8.0.0

Cannot reproduce; error happening to end users.

[ArkhipenkaPiotr]

Isn't any progress with this issue?

[Matej-Hlatky]

Issue happen when calling Exponea.anonymize().

[Igi4]

@Matej-Hlatky Hey, I am very sorry for the later reply. We'll try to provide you with more information as soon as possible.

Does that crash happen spontaneously at random times or on e.g. app start?

[Matej-Hlatky]

Hi @Igi4 ,

For the last 90 days (limit from Crashlytics) this occur only 5 times.

In all cases, this was after user logs-out from the app. In this process, we clear our internal preferences (stored user details), and start with MainActivity. However during this process, Exponea.anonymize() gets called twice, so this could be the issue.

I'll try to prevent this, update to latest Exponea SDK and let you know.

[wassil]

Fixed in 2.8.3 https://github.com/exponea/exponea-android-sdk/releases/tag/2.8.3