<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi all!<div class=""><br class=""></div><div class="">I was trying to open ardrone-turtlebot.world with the command below:</div><div class=""><br class=""></div><div class=""><i class="">arturo@arturo-Parallels-Virtual-Platform:~/Escritorio/follow_turtlebot/gazebo/worlds$ gazebo ardrone−turtlebot.world</i></div><div class=""><i class=""><br class=""></i></div><div class="">It does´t do nothing, no error message and no window opened, i execute the command . Gazebo works good if i open it without any world. </div><div class=""><br class=""></div><div class="">Thanks in advance, kind regards,</div><div class="">Arturo.</div></body></html>