How to Resolve the \'Failed to resolve com.google.android.gms play-services-auth\' Dependency Issue?

Failed to resolve com.google.android.gms play-services-auth Issue

Unable to resolve the dependency com.google.android.gms play-services-auth:11.4.0? This issue can usually be attributed to the absence of the maven repository in your root level build.gradle file.

Solution:

Add the following repository to your root level build.gradle file:

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

Starting with version 11.2.0, this maven repo is essential.

Alternatively, you can use the google() shortcut, but ensure you meet its requirements.

Version Consistency:

It's crucial to maintain version consistency. In your case, you are using different versions of the Firebase libraries. For compatibility, ensure you use the same version:

compile 'com.google.firebase:firebase-database:11.0.4'
compile 'com.google.firebase:firebase-auth:11.0.4'
compile 'com.google.android.gms:play-services-auth:11.4.0'

Update Notes:

Firebase Android SDKs and Google Play Services libraries now have independent version numbers, allowing for more frequent updates. To keep up, consider updating the following:

• Google Play Service gradle plugin to the latest version (at least 3.3.1):

classpath 'com.google.gms:google-services:4.0.1'

• Update Firebase libraries to their latest versions.

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