sudo rm -rf /usr/google/appinventor
sudo rm -rf ~/.appinventor
2.
Download the Appinventor Setup installer Debian package.
sudo dpkg --install appinventor2-setup_2.3_all.deb
3.Starting aiStarter
/usr/google/appinventor/commands-for-Appinventor/aiStarter &
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網址 http://ai2.appinventor.mit.edu/
reference from
Installing App Inventor 2 Setup on GNU/Linux
(http://appinventor.mit.edu/explore/ai2/linux.html)
for win os http://appinventor.mit.edu/explore/ai2/windows.html