thank you trogluddite . robocopy it work

i try to copy folder and sub with ruby code in external it work
in .rb code is simple
require 'fileutils'
FileUtils.cp_r "C:/Test/.", "C:/out"

when i try in flowstone i cant what my wrong?

require 'FileUtils'
def event i
if i=='click'
FileUtils.cp_r(@src_path, @out_path)
end
end