I was just testing the translation of the general tutorial today and it asked me to research the Infantry Training technology (with a sword icon) at the barracks. I noticed this technology must be researched from the Blacksmith, not the barracks. I tried researching it, and also researched all the technologies I could from the barracks, but it didn't "count" as completed and I couldn't advance any further in the tutorial. I believe this technology must have been moved from the barracks when the blacksmith was implemented, and the tutorial wasn't changed accordingly, but I don't know for sure, so I reported it in case someone knew and could fix it.