[lua tutorial error]

so update. I got everything to work but it still failed to load texture. it was spinning and everything

[lua tutorial error]

hey guys, im a complete noob to scripting. im doing the tutorial for Lua that's on this website. im at the part when the fan is supposed to spin, when I go to debug it doesn't load. I don't know if I deleted something I wasn't supposed to or what. I even made the main.lua file again because I thought I messed that up. but it didn't work either. I added pictures of the error im getting and the script it told me to input.

[Carving]

I’m trying to carve a box that has a tube going into it. Trying to make a tunnel effect. Whenever I try to carve the entry hole it says it can’t carve brushes with a hierarchy. Any advise how to do this?