error when GNOME start-up

Salamo Alikom
when gnome start up after 2 or 3 minuts i got this MSG :

Error activating XKB configuration.
It can happen under various circumstances:
- a bug in libxklavier library
- a bug in X server (xkbcomp, xmodmap utilities)
- X server with incompatible libxkbfile implementation

X server version data:
The X.Org Foundation
10402000

If you report this situation as a bug, please include:
- The result of xprop -root | grep XKB
- The result of gconftool-2 -R /desktop/gnome/peripherals/keyboard/kbd

when i try run terminal i got this msg :

There was an error creating the child process for this terminal

this a msg is show up too after gnome start :

The panel encountered a problem while loading "OAFIID:GNOME_ClockApplet".
Do you want to delete the applet from your configuration?

do you have gnome_enable="YES" in your rc.conf?

yes .

what are you running? free/net/open?
chances are you need to update your ports tree:

portsnap fetch extract
or
portsnap fetch update

install portmaster then do:

pkg_info | grep "<"

if you want to upgrade all the displayed packages, run:

portmaster -a

i reinstall FreeBSD now , thanks for help .

maybe you need to update your ports

commands: portsnap fetch update:)

i did it but the update failt cause my system clock .