Comment 2 for bug 637710

The error in the logs is:

Updating fontconfig cache for /usr/share/fonts/truetype/msttcorefonts
cd: 24: can't cd to /usr/share/fonts/truetype/msttcorefonts
rmdir: failed to remove `/usr/share/fonts/truetype/msttcorefonts': No such file or directory

This is an unusual situation, since this removal code is only run if /var/lib/msttcorefonts/ms-fonts exists, and /var/lib/msttcorefonts/ms-fonts is only created if the fonts have been successfully installed. Perhaps you deleted the fonts from the filesystem by hand. In any case, the package should cope gracefully with this situation.