Ubuntu One syncdaemon was working but was not syncing the files as the balloon message would keep on showing increasing number of files. First I had to install Ubuntu One GTK from software Manager as Xubuntu Raring Ringtail has no GUI interface. starting the GUI Ubuntu One I get this message:

“File Sync error. (auth failed (AUTH_FAILED))”

Solution:

Open Terminal (Control+Alt+T) and run: Continue reading →