Android app does not connect to Firebase

Question

I\'m developing android app using Firebase GMS service.
I tried to follow their tutorials, i made project as they said, downloaded the json files.

But when I

Answer 1

Remove this line if you are working with databinding from gradle.properties

android.databinding.enableV2=true

Answer 2

For me the solution is, to replace all "compile 'com.google...." to "implementation 'com.google..."

Answer 3

In build.gradle file replace 'compile' with 'implementation' and sync project.

Answer 4

I tried a lot of ways, but the simplest way is updated com.google.gms:google-services from 3.1.1 to 3.2.0

Answer 5

Remove this line if you are working with databinding from gradle.properties

android.databinding.enableV2=true

Already the databinding is enabled in the app gradle file

Answer 6

I recently update to Android studio 4.0 and got into this error. I was still using the obsolete way to add the databinding . Changing it to the updated way to use the data binding resolved my issue. Below is the code :

buildFeatures{
        dataBinding = true
        // for view binding :
        // viewBinding = true
    }