Schema Error while updating from beaTunes 2 to 3

When updating from beaTunes 2 to 3 you may run into a problem that is shown as a Schema Error 18/19.

You can fix this issue by installing version 3.0.3 before updating to a higher version of beaTunes.

Windows: http://www.beatunes.com/download/beaTunes-3-0-3-jre-win.exe
OS X: http://www.beatunes.com/download/beaTunes-3-0-3-osx.dmg