Duplicate INDEX entry

[Anders Mansson]

Hi! When trying to update my ports with 'portsdb -Uu', I get the 
following error message:

Updating the ports index ... Generating INDEX.tmp - please 
wait..Warning: Duplicate INDEX entry: freeciv-gtk2-1.14.1
Warning: Duplicate INDEX entry: fvwm-imlib-2.4.18
 Done.
done
[Updating the portsdb <format:bdb1_btree> in /usr/ports ... - 11406 port 
entries found 
.........1000.........2000.........3000.........4000.........5000.........6000.........7000.........8000.........9000.........10000.........11000.... 
..... done]

Can someone please explaine what this means and how to remedy it?

Regards
Anders