Duplicate class com.google.common.util.concurrent.ListenableFuture found in modules guava-20.0.jar (com.google.guava:guava:20.0)
Google knows about this error so they made a special package to fix the conflict.
Add this to your
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'
Add this line in build.gradle