"attempt to call a nil value (global 'include')"

Question

i have this code :

include("autorun/sh_myaddon.lua")
local myName = "Jakub"
local age = 999
print(myName)
print(age)

When i pressed f7 this showned up :

lua: ...rrysmod\addons\myaddon\lua\autorun\server\sv_myaddon.lua:1: attempt to call a nil value (global 'include')
stack traceback:
    ...rrysmod\addons\myaddon\lua\autorun\server\sv_myaddon.lua:1: in main chunk
    [C]: in ?

I Tried searching but i found nothing :(