Something wrong with my house cant build with app. flag

[MKSLAYER]

ok i get shoguns permission fill all the rocks in next thing i press A
"You need a log to build a house" so i take out a log it says "You need a log to build a house" now if you have build a house you know you need them to build the supports at the very beggining so i dont know why its saying this. Stefan plz help. If you need the location plz PM me if you wouldnt mind thanks. Others that have had this problem and can help are more then welcome to offer a suggestion.