Portupgrade Problems

Recently I noticed a problem doing a portsdb -Uu.

Portupgrade was complaining about a missing bsd.port.options.mk.
I tried cvsuping the ports, a make fetchindex, deleting all the ports and re cvsuping, but nothing worked.

I’m not sure what the problem was, but it seemed to fix itself by upgrading to FreeBSD 7 from 6.3.