How to use？

[qcdong2016]

I‘m using vs2008 and qt 4.8.6 and build successed. When I running “qlua.exe hello.lua” got the follow error

qlua: E:\projects\o\qtlua\qtgui\init.lua:10: cannot load '.\libqtgui.dll'
stack traceback:
[C]: ?
[C]: in function 'require'
E:\projects\o\qtlua\qtgui\init.lua:10: in main chunk
[C]: in function 'require'
hello.lua:6: in main chunk

hello.lua:

require 'qt'
require 'qtcore'
require 'qtgui'
require 'qtwidget'