MLR wrote: > Thanks for the answer. You are right, it is a java program. But the > arduino IDE works in a vanilla ubuntu 18.4 in VirtualBox. So I think it > is a TDE problem. I don't know about the logical implications you are applying to come to this conclusion, but I would look in the script ./arduino (because it must be a script that sets up the environment to run the java application below). Those scripts usually check java version and/or set JAVA_PATH and CLASS_PATH, so look in this direction. Try following in konsole bash --login ./arduino Last but not least, don't post in the devel list but move this conversation to the user list. regards --------------------------------------------------------------------- To unsubscribe, e-mail: trinity-devel-unsubscribe@xxxxxxxxxxxxxxxxxxxxxxxxxx For additional commands, e-mail: trinity-devel-help@xxxxxxxxxxxxxxxxxxxxxxxxxx Read list messages on the web archive: http://trinity-devel.pearsoncomputing.net/ Please remember not to top-post: http://trinity.pearsoncomputing.net/mailing_lists/#top-posting