Want to build this:
And this is the current state:
Game says it’s not possible.
Do you have the materials needed for the building?
What version of Stonehearth are you running?
It’s a little difficult to tell from the screenshot, but I suspect this is because hearthlings currently need room for their heads when placing blocks. Notice that when they build walls, they build scaffolding that is almost at the height for the wall, so that they can place blocks at around their leg level. I’m working to fix this (this is a huge problem with creating walls inside mines, for example), and will probably have a fix for next week.
Doesn that mean that after the fix building walls inside mines is viable?
Should be, yes.
OMG, best fix ever!