Index generation error

[Roger Merritt]

I've just rebuilt world to 4.10, and tried to run 'portsdb -U'. I've 
cvsupped, I've nuked the whole /usr/ports directory and re-cvsupped, and 
I'm still getting this error:

>[root at kepler:/usr/ports]# portsdb -U
>Updating the ports index ... Generating INDEX.tmp - please 
>wait..rasmol-2.7.2_1: "/usr/ports/devel/imake" non-existent -- dependency 
>list incomplete
>===> biology/rasmol failed
>*** Error code 1
>1 error

uname -v gives me: FreeBSD 4.10-STABLE #0: Fri Jun 11 13:03:58 ICT 2004

Do I need to install/reinstall something manually?

-- 
Roger