Units won't let me recruit them.

[Bloodskull]

I'm playing as Portugal (version 6.1), I built some barracks that should let me train musketeers, but year after year I check and the unit icon in the city doesn't light up and allow me to train them, the same goes for other units too. It claims I only have to wait 2 turns before the next unit is available, but I wait that long and it still says the same thing.

I must be missing something, could someone help me?

[Caesar Clivus]

You have installed the Byg's Grim Reality submod with the 6.1 installer. There is a patch you need to install located at the bottom of the first post in the BGR thread in the submods forum. The file you need is called data.zip. It is not unfortunately savegame compatible.

This has been asked and answered many times previously and is noted in the 6.1 download post. Please use a forum search before posting new threads.