Default FirebaseApp is not initialized in this process. Make sure to call FirebaseApp.initializeApp(Context) first

Question

Default FirebaseApp is not initialized in this process. Make sure to call FirebaseApp.initializeApp(Context) first.

i have tried with many things but i am not able to Get notifications in devices.

i also tried with below thing.

In the Properties pane, set the Build Action Select google-services.json in the Solution Explorer window.

In the Properties pane, set the Build Action to GoogleServicesJson (if the GoogleServicesJson build action is not shown, save and close the Solution, then reopen it):to GoogleServicesJson

Notification was working before, but after I update the xamarin forms to 2.5.0.280555 and Xamarin.Firebase.Messaging.42.1021.1, it stopped working .

It happens sometime because package name not matching in google-services.json — Ali Ahmad Pasa, Mar 21 '21 at 12:23

score 33 · Answer 1 · edited Nov 05 '18 at 11:43

33

For me, none of the solutions worked that were given anywhere. Only this worked. Just had to downgrade my google services from 4.1.0 to 4.0.0

dependencies {
    classpath 'com.android.tools.build:gradle:3.3.0-alpha08'
    classpath 'com.google.gms:google-services:4.0.0'
    /*classpath 'com.google.gms:google-services:4.1.0' <-- this was the problem */
}

So if you have updated the google services, just try to downgrade or change to an older version. Hope it helps

edited Nov 05 '18 at 11:43

Rohan Pawar

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answered Sep 02 '18 at 10:25

Ammar Bukhari

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4

In my case I had to upgrade to com.google.gms:google-services:4.2.0 – jnellen Jan 15 '19 at 19:13

score 24 · Accepted Answer · answered Mar 23 '18 at 14:37

Make sure:

Package name in AndroidManifest.xml is identical to one in the google-services.json
google-services.json build action is set to GoogleServicesJson
After step 2 restart your IDE & clean & rebuild
Explicitly call FirebaseApp.InitializeApp(Application.Context); in MainActivity.OnCreate just before the LoadApplication(..)

Dan Alboteanu · Answer 3 · 2018-11-06T08:13:52.457

24

Add the plugin to the build.gradle (app level)

// ADD THIS AT THE BOTTOM

apply plugin: 'com.google.gms.google-services'

edited Nov 06 '18 at 08:13

answered Sep 14 '18 at 19:42

Dan Alboteanu

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I was able to run my app with Firebase just fine but after force closing and restarting I was getting this crash. Adding the apply plugin at the bottom of my build.gradle fixed the crash. – FSUWX2011 Mar 29 '19 at 13:51

score 3 · Answer 4 · answered Apr 29 '21 at 17:08

3

for me, that happen when I forgot add the second plugin in the app module

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'  // Google Services plugin

after add this plug in, you can try the other's suggestions.

answered Apr 29 '21 at 17:08

Zhengyu Jin

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score 0 · Answer 5 · answered Sep 18 '20 at 16:02

0

Upgrade com.google.gms:google-services to latest version, it will be solved.

answered Sep 18 '20 at 16:02

Mohammed mansoor

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score 0 · Answer 6 · answered Mar 16 '21 at 05:52

0

Upgrade

com.google.gms:google-services

to latest version, it will be solved.

It works for me.

answered Mar 16 '21 at 05:52

Manish Singh Chouhan

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Default FirebaseApp is not initialized in this process. Make sure to call FirebaseApp.initializeApp(Context) first

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