Question 120463 in Firebase Question posted in
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Firebase doesn't work on Android Studio Emulator

I was working on a project for my studies and everything was working fine, but I changed my OS to win11 while wiping all previous data.
Now Firebase is stuck on "loading" after using any type of sign in. Real time database data is not showing as well. After around 5-10 of waiting auth will sometimes work continuously (can sign in, sign out multiple times, until running app again) but database never.
Everything works well when i use physical device. Apps without firebase work fine on emulator. Internet connection works. Example app that doesn’t work:
https://github.com/firebase/quickstart-android

I have:

  1. Used multiple different emulators(those with google play) with different sdk
  2. Changed SHA1 and google-servies.json
  3. In Settings -> Appearance & Behavior -> SDK Tools downloaded and activated Google play service
  4. Reinstalling Android Studio, installing win10 again
  5. Updated Google Play services version
  6. Tried different projects on different firebase accounts
  7. Activated Sign-in methods in firebase console
  8. Searched web for several hours and done many other things I can’t even remember now

The only error I’m sometimes getting is:
E/FirebaseInstanceId: binding to the service failed

and this error when I use new emulator for the first time:
E/FirebaseMessaging: Topic sync or token retrieval failed on hard failure exceptions: java.util.concurrent.ExecutionException: java.io.IOException: AUTHENTICATION_FAILED. Won’t retry the operation.

E/FirebaseInstanceId: Topic sync or token retrieval failed on hard failure exceptions: AUTHENTICATION_FAILED. Won’t retry the operation.

E/FA: Missing google_app_id. Firebase Analytics disabled.

E/FA: Uploading is not possible. App measurement disabled

For me it looks like something is blocking(or really slowing down) connection between android studio emulator and firebase.

I would be very grateful for any kind of help, its really important for my studies.

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8

Answers


  1. Chosen as BEST ANSWER
    0

    What fixed my problem was installing an older version of android emulator form this website:
    https://developer.android.com/studio/emulator_archive
    I was using Android Emulator (31.3.10) Beta 1 and switching to Android Emulator (30.9.5) solved the problem.


  2. 0

    I have the same problem. It happened after several updates: Windows and Android Studio. Apparently, it’s the emulator (version 31.3.10).

    In my case, the solution to the problem is disabling Wi-Fi in the emulator and enabling mobile Internet. Although in fact the connection in Windows remains the same.

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  3. 0

    I think it’s the emulator… Or at least it was for me. I was working with version 31.3.10 and had the same problem. App would not connect to the Firebase server in the emulator. Firebase Authentication would eventually work but took forever to login. Firebase was only using local data. Queries to Firebase returned results only from the cache (which was empty anyway), and I could see that (QuerySnapshot.metadata.isFromCache was true).
    Tried reinstalling the app, deleted the emulator image and made a new one, nothing worked. Internet access on the emulator was fine, I could browse web pages etc.
    Only thing that worked was downgrading the emulator. I went back to 31.2.10, cause I knew that one worked. You can get older versions from https://developer.android.com/studio/emulator_archive

    I really hope they fix it soon cause it cost me a whole day to figure out wtf. Hope this helps someone else.

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  4. 0

    I found the solution here. Error in the emulator version 31.3.10. Change the emulator to 30.2.9
    https://youtu.be/qo3SbdbXFos

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  5. 0

    The problem seems to be the emulator. I updated android studio recently and the code that I had already gotten to speak to firebase stopped working without me editing anything.

    Instead of reverting to an older emulator, I switched to using a physical device such as my phone instead.

    It fixed it right away.

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  6. 0

    I was using emulator version something like 31.3.10 and upgraded it to 31.3.11. Now problem is solved.
    Downgrading will also work but i like upgrading.

    Below i have attached the screenshot:

    https://user-images.githubusercontent.com/96950460/193184898-28e24140-8b12-4c80-8900-c56d4776619b.png

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  7. 0

    I have the same issue with emulator 31.3.12. After app startup it can’t connect to any Firebase services. After 7 minutes and several retries it worked. Without any interaction from my side.

    I am using Firebase Remote Config and Crashlytics.

    enter image description here

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  8. 0

    In my case the solution was to set usesCleartextTraffic to true in AndroidManifest.xml

    <?xml version="1.0" encoding="utf-8"?>
<manifest ...>
    <uses-permission android:name="android.permission.INTERNET" />
    <application
        ...
        android:usesCleartextTraffic="true"
        ...>
        ...
    </application>
</manifest>
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