attempt to index global 'vgui' (a nil value)

[-nO.Va]

flerpes\gamemode\shared.lua:56: attempt to index global 'vgui' (a nil value)
[lua]
local WepMenu = nil
function GM:ShowWepMenu()
if ( !IsValid( WepMenu ) ) then
if ( WepMenu ) then WepMenu:Remove() end
WepMenu = vgui.CreateFromTable( vgui_Splash )
WepMenu:SetHeaderText( "Choose your weapon!" )
WepMenu:SetHoverText( "Select all your weapons and powerups here." )
local Button = WepMenu:AddSelectButton( "Shotgun test", LocalPlayer():Give( "weapon_shotgun" ) )
Button.m_colBackground = Color(255, 90, 90, 255)
local function2 = function() LocalPlayer():GiveAmmo( 30, "buckshot" ) end
local Button2 = WepMenu:AddSelectButton( "Shotgun Ammo", function2 )
Button2.m_colBackground = Color(255, 90, 90, 255)
Button2.Think = function( self )
self:SetDisabled( !LocalPlayer():HasWeapon( "weapon_shotgun" ) )
end
WepMenu:AddCancelButton()
end
WepMenu:MakePopup()
end

concommand.Add( "WepMenu", GM:ShowWepMenu() )
[/lua]

What am I doing wrong? From what I can gather from searches I need to include some vGUI stuff somewhere, but where and what?

[NullPoint]

Put it in a clientside Lua file, not a shared one.

[editline]04:02PM[/editline]

vgui is client only.

[-nO.Va]

I moved it to cl_init.lua but now I get this:

Lua initialized (Lua 5.1)
Registering gamemode 'fretta' derived from 'base'
Registering gamemode 'flerpes' derived from 'fretta'
ScriptEnforce is disabled
Executing listen server config file
exec: couldn't exec listenserver.cfg
InitFastCopy: only 51% fast props. Bug?
Lua initialized (Lua 5.1)
Registering gamemode 'fretta' derived from 'base'
includes/extensions/vgui_sciptedpanels.lua:166: vgui.Create: Error when calling 'PANELTABLE':Init (fretta\gamemode\cl_selectscreen.lua:13: attempt to index global 'GAMEMODE' (a nil value))

**********************************************
**********************************************
********** COULDN'T LOAD GAMEMODE!! **********
**********************************************
**********************************************

There was a problem opening the gamemode file 'flerpes/gamemode/cl_init.lua'


Registering gamemode 'flerpes' derived from 'fretta'
Sending 10 'User Info' ConVars to server (cl_spewuserinfoconvars to see)
fretta\gamemode\cl_selectscreen.lua:220: attempt to index field 'lblMain' (a nil value)
fretta\gamemode\cl_selectscreen.lua:220: attempt to index field 'lblMain' (a nil value)
Redownloading all lightmaps

[NullPoint]

Have you altered cl_selectscreen.lua in fretta\gamemode?

[editline]04:11PM[/editline]

Or have you overridden GAMEMODE?

[-nO.Va]

No and no. :(

[BulletMagnet]

It won't even load the gamemode for me...

[Averice]

Also GiveAmmo and Give are Serverside.

[Gbps]

2009...