Including OpenSky API in Android Studio

Hi,
I am trying to use the OpenSky API in and android studio project. I added a dependency to the app build.gradle file like so:
dependencies {
implementation 'org.opensky:opensky-api:1.3.0'
}
But when I try to sync the gradle project files (compile them) android studio gives me an error saying: ERROR: Failed to resolve: org.opensky:opensky-api:1.3.0
What is the proper way to add this API as a dependency in Android Studio?

Have you managed to resolved this problem? I am also having problems

The project on the GitHub repository ( git clone github.com/openskynetwork/opensky-api.git ) contains a pom file in the java/src/test/java directory , I believe that is what Android Studio needs to locate the library