Getting Exception java.lang.NoClassDefFoundError: com.google.firebase.FirebaseOptions after updating to the new firebase

Question

I have updated my application to the new firebase using the this and now when i compile my project i get the following exception.

Here is my logcat:

Answer 1

I think I've found a solution for this issue at this answer, please give it a look and thank @Gabriele Mariotti, he wrote:

In your top-level build.gradle you have to add:

buildscript {
    // ...
    dependencies {
        // ...
        classpath 'com.google.gms:google-services:3.0.0'
    }
}

Then in your module build.gradle:

apply plugin: 'com.android.application'

android {
  // ...
}

dependencies {
  // ... 

}

// ADD THIS AT THE BOTTOM
apply plugin: 'com.google.gms.google-services'