Crash: java.io.IOException: Invalid argument

[gaoxu19930112]

[REQUIRED] Describe your environment

• Android Studio version: Build #AI-251.26094.121.2513.14007798, built on August 28, 2025
• Firebase Component: crashlytics&analytics&config&messaging&firebase-core
• Component version: "34.2.0" (FirebaseBOM)

[REQUIRED] Step 3: Describe the problem

          Fatal Exception: java.io.IOException: Invalid argument
       at java.io.UnixFileSystem.canonicalize0(UnixFileSystem.java)
       at java.io.UnixFileSystem.canonicalize0(UnixFileSystem.java:245)
       at java.io.UnixFileSystem.canonicalize(UnixFileSystem.java:192)
       at java.io.File.getCanonicalPath(File.java:616)
       at java.io.File.getCanonicalFile(File.java:652)
       at androidx.datastore.core.FileStorage.createConnection(FileStorage.kt:48)
       at androidx.datastore.core.DataStoreImpl$storageConnectionDelegate$1.invoke(DataStoreImpl.kt:181)
       at androidx.datastore.core.DataStoreImpl$storageConnectionDelegate$1.invoke(DataStoreImpl.kt:180)
       at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:83)
       at androidx.datastore.core.DataStoreImpl.getStorageConnection$datastore_core_release(DataStoreImpl.kt:183)
       at androidx.datastore.core.DataStoreImpl$coordinator$2.invoke(DataStoreImpl.kt:184)
       at androidx.datastore.core.DataStoreImpl$coordinator$2.invoke(DataStoreImpl.kt:184)
       at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:83)
       at androidx.datastore.core.DataStoreImpl.getCoordinator(DataStoreImpl.kt:184)
       at androidx.datastore.core.DataStoreImpl.readAndInitOrPropagateAndThrowFailure(DataStoreImpl.kt:264)
       at androidx.datastore.core.DataStoreImpl.access$readAndInitOrPropagateAndThrowFailure(DataStoreImpl.kt:48)
       at androidx.datastore.core.DataStoreImpl$readState$2.invokeSuspend(DataStoreImpl.kt:218)
       at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
       at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:101)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1156)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:651)
       at com.google.firebase.concurrent.CustomThreadFactory.lambda$newThread$0$com-google-firebase-concurrent-CustomThreadFactory(CustomThreadFactory.java:47)
       at com.google.firebase.concurrent.CustomThreadFactory$$ExternalSyntheticLambda0.run(D8$$SyntheticClass)
       at java.lang.Thread.run(Thread.java:1119)

Relevant Code:

  private fun initFirebaseConfig() {

        try {
            FirebaseApp.initializeApp(this)
            val remoteConfig: FirebaseRemoteConfig = Firebase.remoteConfig
            val configSettings = remoteConfigSettings {
                minimumFetchIntervalInSeconds = 3600
            }
            remoteConfig.setConfigSettingsAsync(configSettings)
            remoteConfig.setDefaultsAsync(R.xml.remote_config_defaults)
            remoteConfig.addOnConfigUpdateListener(object : ConfigUpdateListener {
                override fun onUpdate(configUpdate : ConfigUpdate) {
                    MyLog.e("remoteConfig", "Updated keys: " + configUpdate.updatedKeys);

                    if (configUpdate.updatedKeys.contains("ssl_pinning_enabled")) {
                        remoteConfig.activate().addOnCompleteListener {
                            MyDataStore.setSslPinningEnabled(remoteConfig.getBoolean("ssl_pinning_enabled"))
                          
                        }
                    }
                }

                override fun onError(error : FirebaseRemoteConfigException) {
                    MyLog.e("remoteConfig", "Config update error with code: " + error.code+"   "+ error)
                }
            })
            MyDataStore.setSslPinningEnabled(remoteConfig.getBoolean("ssl_pinning_enabled"))
            MyLog.e("ssl_pinning_enabled", remoteConfig.getBoolean("ssl_pinning_enabled").toString())
        } catch (e: Throwable){
//            MyLog.e("Firebase error: $e")
        }
    }

[lehcar09]

Hi @gaoxu19930112, thank you for reaching out. Based on the stacktrace you shared, It looks the exception is not caused by Firebase. I tried reproducing the issue with the code snippet you shared, however, I did not encounter the exception. I tried calling the initFirebaseConfig in Application class or in MainActivity, but I don't see the error.

To get a better understanding, can you answer the question below:

• By any chance, were you able to reproduce it?
• You seem to be using Datastore MyDataStore.setSslPinningEnabled, could you try removing them and see if the issue will go away? Also, can you share the Datastore dependency your using?

Also , I notice that you're not using the latest SDK version. Could you try using the latest Firebase SDK (v34.6.0) ? We usually suggests to always use the latest version to ensure that you have the latest updates and bug fixes.