luaDoTransformItem(). Item not found

[Darad]

Hey guys,

need some help here. Have a mod that does some stuff, and then lowers the charges on the item. But this lowering does not work properly. Here's the code that does it.

<action itemid="XXXX" allowfaruse="0" event="buffer">

-- Set charges.
if config.useCharges == 1 then 
	doTransformItem(item.uid, item.itemid, item.type - 1)
end

This results in

[07/09/2009 16:51:43] Lua Script Error: [Action Interface] 
[07/09/2009 16:51:43] buffer

[07/09/2009 16:51:43] luaDoTransformItem(). Item not found

Halp!?