App Inventor install / uninstall 1. debian package 1.1 install download file : appinventor2-setup_2.3_all.deb link http://appinv.us/aisetup_linux_deb and install 1.2 uninstall appinventor2-setup_2.3_all.deb file double click -> run Ubuntu Software -> remove click 2. use apt 2.1 install $ sudo apt install appinventor2-setup 2.2 uninstall $ sudo apt remove appinventor2-setup install directory /usr..