I just wanted to add i made it in version 17 not 18.
also i wanted to point to this…http://discourse.stonehearth.net/t/crash-caused-by-save-game/24972
.since i dont know if it could be related…and dont want you chasing ghosts i might have created 
i had the startup errors before my little savegame issue tho…and had finished working on the building in question. a fair ammount of time before that happened.