Creating folder names with variables in applescript?

Question

im trying to make folders and name them with structured names but im getting an error and im not sure what im doing wrong.
the error i get is:
Finder got an error: Can’t make "/Users/USERNAME/Desktop/Fake Server/Project Name" into type item.
----------------------these variables are just used for my example, the actual script asks for input and makes that into the variables -------------------
set the_folder to "Macintosh HD:Users:USERNAME:Desktop:Fake Server"
set theChosenOne to "Selected"
set Code to "ABCD"
set Number1 to "12345"
set projLocation to (POSIX path of the_folder & "/" & theChosenOne)
set folderTags to Code & " " & Number1
tell application "Finder"
make new folder at projLocation with properties {name:folderTags & " artfile"}
end tell

Answer 1

The following should work:
set the_folder to "/Users/USERNAME/Desktop/Fake Server"
set theChosenOne to "Selected"
set Code to "ABCD"
set Number1 to "12345"
set projLocation to POSIX file (the_folder & "/" & theChosenOne)
set folderTags to Code & " " & Number1
tell application "Finder"
    make new folder at projLocation with properties {name:folderTags & " artfile"}
end tell
Message was edited by: Pierre L.