I got soo frustrated. I had to take my villager(s) w/ little to NO building skill and make them fix huts over and over, watching them constantly b/c the TC wouldnt direct, until he was master. He ended up being my only builder until I made others fixing huts until they were adept to help. Major build boost after that one though. Unfortuantely I saved that Puzzle for last. Grrrr.