I can't run Fedora, when I run this command: ./fedora, I got a blank screen and the terminal keep to show this error: /home/user/fedora/startfedora: line 7: wmctrl: command not found() /home/user/fedora/startfedora: line 7: wmctrl: command not found() /home/user/fedora/startfedora: line 7: wmctrl: command not found()