Class GoogleSignIn not found in auth library

Question

I have got problem with signing to Google play by android app, i added: compile \'com.google.firebase:firebase-auth:11.4.2\' and compile \'com.google.android.gms:play-services-a

Answer 1

• Update PlayStore lib to latest version 46 from SDK manager->Extra

• Update all firebase dependencies to 1160

  //Firebase
  compile 'com.google.firebase:firebase-core:11.6.0'
  compile 'com.google.firebase:firebase-auth:11.6.0'
  

• Update play-services-auth dependencies to 1160

   compile 'com.google.android.gms:play-services-auth:11.6.0'
  

• Update google-services dependency in project level build.gradle to 3.1.0. Note the maven google dependency:

buildscript {
     repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.3'
        classpath 'com.google.gms:google-services:3.1.0'
     }
   }

 allprojects {
    repositories {
        jcenter()
        mavenCentral()
        maven { url "https://maven.google.com"}

     }
  }

Answer 2

Here is the release note for version 11.6.0

In Auth Library :

Added the GoogleSignInClient and GoogleSignIn classes. GoogleSignInClient provides the entry point for interacting with the Google Sign In API.

so inject 11.6.0 version of auth artifact.

compile 'com.google.android.gms:play-services-auth:11.6.0'

compile now deprecated so it's better to use implementation

implementation 'com.google.android.gms:play-services-auth:11.6.0'

Answer 3

GoogleSignIn / GoogleSignInClient were introduced in Google Play services SDK version 11.6.

Older versions have slightly different class names and require a GoogleApiClient.

Please upgrade to 11.6 from Android Studio and configure below dependency.

dependencies {
     compile 'com.google.android.gms:play-services-auth:11.6.0'
 }