When I use implementation 'com.google.firebase:firebase-inappmessaging-display:17.2.0' in my app/build.gradle, I get this error:
Duplicate class com.google.common.util.concurrent.ListenableFuture found in modules guava-20.0.jar (com.google.guava:guava:20.0) and listenablefuture-1.0.jar (com.google.guava:listenablefuture:1.0)
Go to the documentation to learn how to Fix dependency resolution errors.
What I also have in my app/build.gradle is this:
implementation 'com.google.android.gms:play-services-base:16.1.0'
implementation 'com.google.android.gms:play-services-analytics:16.0.8'
implementation 'com.google.android.gms:play-services-awareness:16.0.0'
implementation 'com.google.android.gms:play-services-cast:16.2.0'
implementation 'com.google.android.gms:play-services-gcm:16.1.0'
implementation 'com.google.android.gms:play-services-location:16.0.0'
implementation 'com.google.android.gms:play-services-maps:16.1.0'
implementation 'com.google.firebase:firebase-core:16.0.8'
implementation 'com.google.firebase:firebase-iid:17.1.2'
implementation 'com.google.firebase:firebase-messaging:17.6.0'
implementation 'android.arch.work:work-runtime:1.0.1'
implementation 'com.android.support:multidex:1.0.3'
apply plugin: 'com.google.gms.google-services'
Maybe one of the libraries that I am using already includes support for the In-App Messaging dependency, and then it becomes redundant? Thank you.
I found the solution at How to solve Program type already present: com.google.common.util.concurrent.ListenableFuture?. user2297550 said:
I merely added
implementation 'com.google.guava:guava:27.0.1-android'at the end of my app gradle file and the error went away.
That was the solution for me. Now I have this and my app compiles correctly:
implementation 'com.google.firebase:firebase-inappmessaging-display:17.2.0'
implementation 'com.google.guava:guava:27.0.1-android'