Duplicate class com.google.common.util.concurrent.ListenableFuture found in modules guava-20.0.jar (com.google.guava:guava:20.0)

Question

When I use implementation \'com.google.firebase:firebase-inappmessaging-display:17.2.0\' in my app/build.gradle, I get this error:

Answer 1

1. Open build.gradle file.

2. Do Not replace! Just add this line into dependencies{}:

   implementation 'com.google.guava:guava:-jre'
   

Note: To get the version go to https://mvnrepository.com/artifact/com.google.guava/guava and find for the latest version of jre.