upgrading units

[kelpietull]

How do you upgrade an individual unit? The manual does not say. Also why won't it allow me to upgrade using shift-u? I have 3 pikeman in cities with saltpeter and I have discovered gunpowder. I have no problem creating musketmen in the production queue, but when I try upgrading I get the message "there are note pikemen that can be upgraded at this time". This happens with any unit I try and upgrade. Thanks

[des-esseintes]

u need a rax.

[kelpietull]

what is an rax?

[WarpStorm]

Barracks.

[Hagbart]

press the U button.

[Bleyn]

More accurately, land units must be in a city with a barracks, sea units must be in a city with a harbor, and if you happen to have fighters you want to upgrade to jet fighters (those being the only upgradable air units) they have to be in a city with an airport.

[statusperfect]

how du i upgrade all units of a type? like all chariots - > horsemen. is that possible?

[Hagbart]

Originally posted by statusperfect
how du i upgrade all units of a type? like all chariots - > horsemen. is that possible?

make a chariot in a city with a barracks active and press shift-u.

[statusperfect]

Hagbart> Thank you.