frank@franktop:~/src/exercises$ minimesos destroy --marathonFile es.json
Failed to parse parameters. Unknown option: --marathonFile
Exception in thread "main" java.lang.NullPointerException
at com.beust.jcommander.JCommander.usage(JCommander.java:1134)
at com.beust.jcommander.JCommander.usage(JCommander.java:1049)
at com.containersol.minimesos.main.Main.printUsage(Main.java:139)
at com.containersol.minimesos.main.Main.run(Main.java:88)
at com.containersol.minimesos.main.Main.main(Main.java:55