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Hi @francescocervone this issue was addressed in #1714 but we haven't made a release including with the fix yet. I'll keep this issue updated when the fix is out in a release.

Is this caused by clearing SharedPreferences?

    val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
    sharedPreferences.edit().clear().commit()

After clearing SharedPreferences, this crash might happen.

Same issue.

Below dependencies used in my project.

def firebase_messagging = "20.2.3"
implementation "com.google.firebase:firebase-messaging:$firebase_messagging"

def firebase_config = "19.2.0"
implementation ("com.google.firebase:firebase-config:$firebase_config", {
        exclude group: 'com.google.protobuf'
}) // fixme: see issue still present at https://github.com/firebase/firebase-android-sdk/issues/1143

def firebase_auth = "19.3.2"
implementation "com.google.firebase:firebase-auth-ktx:$firebase_auth"

def realtime_database = "19.3.1"
implementation "com.google.firebase:firebase-database:$realtime_database"

def firebase_functions = "19.0.2"
implementation "com.google.firebase:firebase-functions-ktx:$firebase_functions"

def firestore_ktx = "21.1.1"
implementation "com.google.firebase:firebase-firestore-ktx:$firestore_ktx"

def firebase_analytics = "17.4.4"
implementation "com.google.firebase:firebase-analytics-ktx:$firebase_analytics"

def firebase_crashlytics = "17.1.1"
implementation "com.google.firebase:firebase-crashlytics:$firebase_crashlytics"

def firebase_appindexing = "19.1.0"
implementation "com.google.firebase:firebase-appindexing:$firebase_appindexing"

and stacktrace:

FATAL EXCEPTION: firebase-installations-executor-1
    Process: <my package id>, PID: 1690
    java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
        at com.google.firebase.installations.FirebaseInstallations.registerFidWithServer(FirebaseInstallations.java:452)
        at com.google.firebase.installations.FirebaseInstallations.doNetworkCallIfNecessary(FirebaseInstallations.java:331)
        at com.google.firebase.installations.FirebaseInstallations.lambda$doGetId$1(FirebaseInstallations.java:296)
        at com.google.firebase.installations.FirebaseInstallations$$Lambda$3.run(Unknown Source:2)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:764)

Anything we can do to temporarily stop this crash from happening?

@searchy2 That's highly likely. Do you or others who are reporting crash clear the shared prefs?

@wugeo0824 We are rolling out a fix this week which should be released either by Friday or Monday next week. Updating to the latest version of FCM releasing this week should fix the issue.

Is this caused by clearing SharedPreferences?

    val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
    sharedPreferences.edit().clear().commit()

After clearing SharedPreferences, this crash might happen.

This crash did start popping up for me after I renamed a shared preference's key value.

@ankitaj224 We are noticing this issue on a new app install. Looking forward to the library update with the fix.

Is this issue fixed ? It's mentioned in the latest release note but the ticket is still open
https://firebase.google.com/support/release-notes/android#installations_v16-3-2

We have version 16.3.2, and we have this crash. So it's weird that it's mentioned as a fix in 16.3.2. Note that 16.3.2 is also the version mentioned in the description of this ticket.

Looks like a typo in the release note. 16.3.2 was rollout awhile ago. I'm trying to update to 16.3.3 to see if it fix.

@lucas34 You are right, that's a typo. Thanks for catching it, we will fix the release notes in a short while. firebase-installations:16.3.3 or firebase-messaging:20.2.4 contain the probable fix.

Please let us know if anyone has tried out the fix.

@ankitaj224 - I am confused..the current version of crashlytics is firebase-crashlytics:17.1.1. How do we use firebase-installations if we are using the crashlytics SDK?

@menting311 Thanks for reaching out & sorry for the confusion. You have two options:

1. Add a direct dependency on firebase-installations:16.3.3 in your app.
2. Or await for Crashlytics new release which is planned for this week ( ~ Aug 13th).

We updated to 16.3.3 and it solved the issue. Thanks !

@lucas34 Thank you so much for confirming.

I will go ahead and close this issue. Please feel free to reach out if you continue to see this issue.

@ankitaj224 - So is this fix in crashlytics 17.2.1? I was looking at the release notes on this and I am not seeing anything referring to this?

https://firebase.google.com/support/release-notes/android#crashlytics_v17-2-1

@menting311 Yes, crashlytics 17.2.1 transitively get this fix as it depends on firebase-installations:16.3.3. https://firebase.google.com/support/release-notes/android#installations_v16-3-3

it's been two days that this crash happens in crashlytics:17.1.1 only for android 4 meanwhile versions that contains 17.1.1 its been live from about one week ago.

@MahdiYusefi Its possible probably some disk write issue. I would recommend updating to crashlytics 17.2.1 and that should fix the issue.

Thanks.