App crashes when userId is set: Could not create directory at /tmp/amplitude-identity

[el-fasoh]

Expected Behavior

Application should not crash when a user logs in and setUserId is called

Current Behavior

The app launches properly when userId is not set. When a user logs in the app crashes: Stacktrace:

  java.io.IOException: Could not create directory at /tmp/amplitude-identity/$default_instance
         at com.amplitude.id.utilities.FileUtilsKt.createDirectory(FileUtils.kt:9)
         at com.amplitude.id.FileIdentityStorage.<init>(FileIdentityStorage.kt:21)
         at com.amplitude.id.FileIdentityStorageProvider.getIdentityStorage(FileIdentityStorage.kt:71)
         at com.amplitude.core.Amplitude$build$built$1.invokeSuspend(Amplitude.kt:105)
         at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
         at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)

Possible Solution

Steps to Reproduce

1. Invoke amplitude.setUserId(YOUR_ID)

Environment

• Device: Google Pixel 7 Pro
• Device OS and Version: Android Version 13

[Mercy811]

Hi @el-fasoh, we'd recommend to follow our example project to set user id. It works well on my local.

Could you give more details like environment settings if the example project still fails.

[el-fasoh]

Hi @Mercy811 after looking at the sample I notice there are two Amplitude classes in the SDK com.amplitude.android.Amplitude and com.amplitude.core.Amplitude. My setup was using the one from core and that was causing crashes.