[Request] Image on the addons

Please help me witch addons, i editing addons and imeet such lines:

local _______= Material( "material/test.png" ) [EXAMPLE]
And i run the server and image it error texture (Pink and black color), and i editing this line on it:
local _______= Material( "D:/Garry'sModDS/garrysmod/addons/hud/material/test.png" ) [EXAMPLE]
And this work. Please help me i want use not long code.