Gradle: More than one variant of project :myLib matches the consumer attributes

Question

A library that I wrote myLib uses RemoteMessage from Firebase, the app itself also uses Firebase.

Using gradle 4.7

Answer 1

I faced a similar issue in past few days with.

implementation 'com.google.android.gms:play-services-auth:15.0.0'
implementation 'com.google.firebase:firebase-messaging:15.0.0'

solution was to either downgrade to

implementation 'com.google.android.gms:play-services-auth:12.0.1'
implementation 'com.google.firebase:firebase-messaging:12.0.1'

or consider leaving Google Cloud Services and upgrading to FCM entirely

Note that they have different version numbers you can look it up here