The simulator requireds JavaFX for some of its components (e.g. Media, and
Browser). Sounds like you're using OpenJDK8, which lacks JavaFX. You
either need to use Oracle's JDK8 (which has JavaFX), or OpenJDK9+, for
which the simulator will provide its own version of JavaFX. This error
indicates
Exception in thread "AWT-EventQueue-0"
java.lang.UnsupportedClassVersionError: javafx/scene/media/MediaException
has been compiled by a more recent version of the Java Runtime (class file
version 54.0), this version of the Java Runtime only recognizes class file
versions up to 52.0
This proble
