Problem with a piece of LUA:

[solvexx]

 Message: Interface\AddOns\sUnitframes\sUnitframes.lua:303: attempt to call method 'SetStatusBarTexture' (a nil value)
Time: 11/29/12 00:03:49
Count: 2
Stack: Interface\AddOns\sUnitframes\sUnitframes.lua:303: in function <Interface\AddOns\sUnitframes\sUnitframes.lua:299>
Interface\AddOns\sUnitframes\sUnitframes.lua:316: in function <Interface\AddOns\sUnitframes\sUnitframes.lua:311>
Interface\AddOns\sUnitframes\sUnitframes.lua:324: in function <Interface\AddOns\sUnitframes\sUnitframes.lua:321>

What I'm using:

local numChildren = -1;
local handledNameplates = {};
local STATUSBAR_TEXTURE_PATH = "Interface\\Textures\\UI-StatusBar.blp"; --Set the new statusbar texture path
local HPBORDER_TEXTURE_PATH = "Interface\\Textures\\Nameplate-Border.blp";
local CBBORDER_TEXTURE_PATH = "";

local function SkinPlate(frame)
	local healthBar, castBar = frame:GetChildren();
	local _, hpBorder = frame:GetRegions()
	local _, cbBorder = castBar:GetRegions()
	healthBar:SetStatusBarTexture(STATUSBAR_TEXTURE_PATH);
	castBar:SetStatusBarTexture(STATUSBAR_TEXTURE_PATH);
	hpBorder:SetTexture(HPBORDER_TEXTURE_PATH);
	cbBorder:SetTexture(CBBORDER_TEXTURE_PATH);
	
	handledNameplates[frame:GetName()] = true;
end

local function HookFrames(...)
	for index = 1, select('#', ...) do
		local frame = select(index, ...);
		
		if(not handledNameplates[frame:GetName()] and (frame:GetName() and frame:GetName():find("NamePlate%d"))) then
			SkinPlate(frame);
		end
	end
end

CreateFrame('Frame'):SetScript('OnUpdate', function(self, elapsed)
	if(WorldFrame:GetNumChildren() ~= numChildren) then
		numChildren = WorldFrame:GetNumChildren();
		HookFrames(WorldFrame:GetChildren());
	end	
end)

What's changed with 5.1 to break SetStatusBarTexture?

[Deleted]

Check your GetChildren returns. Maybe the nameplate layout changed.

[solvexx]

Check your GetChildren returns. Maybe the nameplate layout changed.

Essentially I was hoping someone would just be able to tell me what to change. >.<