I have 15 villagers. They will no longer breed because there is insufficient housing. I am at building level 2. Nobody has any construction skill since it has been so long since there was anything to build. Help.

Try looking around...when I got to 15 villagers, the construction symbol for the second hut showed up. You can then train any villager you want to build it. It worked when I turned off the game and went back in.

Ladycfii said that you need a villager with construction skills to start the 2nd hut.... so look around the island for something that is broken to train your next builder.

If your villagers don't find anything that they can work on, then you can send them to do research until you get the necessary tech levels!

What do you do if you have all but the last puzzle, 65 villagers, and no master builder? Start over?

Or wait to see if more debris washes up on the beach. That might be enough to train a single villager, but I've never tried it so I don't know for sure.

I can tell you right now it's not enough to train a FRESH builder - it only gets you about half way there. I'm stubborn and hoping my now half-way there builder is around long enough to get another debris washed up on the beach mission to clean up and possibly do puzzle 12. If you have an adept builder already this even should be enough to push you up. If not, it might be wait it out or start it over time

I actually had to have my fresh builder do about 3 different building tasks before they became master!! It's not an easy thing to do!

By the way why do my builders sometimes 'Axe the Hut'?

it's supposed to be Fix the Hut....