first of all I am using a Mac, Eclipse Mars 4.5.2 and gluon's Scene builder 8.2.0. When I set the path of the executable in my preferences->JavaFX, the launcher is looking for a scenebuilder-launcher.sh file which is not in my folder.
In my Contents/MacOS folder are only libpackager.dylib and SceneBuilder (exec).
I have to use version 8.2.0.