attempting to use
implementation "org.igniterealtime.smack:smack-android:4.2.0"
implementation "org.igniterealtime.smack:smack-tcp:4.2.0"
generates an error
Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve xpp3:xpp3:1.1.4c.
<a href="openFile:C:/Users/saruman/AndroidStudioProjects/passengerMVP/app/build.gradle">Open File</a><br><a href="Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve xpp3:xpp3:1.1.4c.">Show Details</a>
gradle build failed.