Plugin with id 'com.google.gms.google-services' not found

Question

I have followed this link to integrate ads in my app. But it shows this error:

This is

Answer 1

Had the same problem.

Fixed by adding the dependency

classpath 'com.google.gms:google-services:3.0.0'

to the root build.gradle.

https://firebase.google.com/docs/android/setup#manually_add_firebase

Answer 2

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

add above line at the bottom of your app gradle.build.

Answer 3

Go To Setting > Android SDK > SDK Tools > Google Play Services

Answer 4

I changed google-services classpath version from 4.2.0 to 3.0.0

classpath 'com.google.gms:google-services:3.0.0'

Then rebuild the project, Then strangely it suggested me to add firebase core to the project.

Then I added firebase core on the app(module)

implementation 'com.google.firebase:firebase-messaging:16.0.8'

Then the error disappeared magically.