Why can't I appoint a broker?

I am new to DF and I have only played a few games. In my latest game, I am trying to trade with a caravan for a new anvil. However, there is a problem. I can't appoint a Broker. In my other games, I started out with a Leader and a Chief Doctor. The Broker skill was always available for when I chose to appoint one.

When I go to the [n]oble screen, I just see the expedition leader. There are no other positions on the list; not even the Chief Doctor.

Any idea why this is?

Solution 1:

If it doesn't show any noble titles other than the leader I'd say something is corrupt in your game.

Try reinstalling from the site, however if this doesn't work you may need to dump your save file (or spend some time editing it manually to fix the enity_raws again.