[Tatheltek]

XML

				
<OnLoad>
        self_timeSinceLastUpdate = 0
</OnLoad>

LUA

	
Backlash_UpdateInterval = 2.0
			
function Backlash_OnUpdate(self, elapsed)
  	self.timeSinceLastUpdate = self.timeSinceLastUpdate + elapsed; 	

  	while (self.timeSinceLastUpdate > Backlash_UpdateInterval) do
		BacklashMainFrame:Hide();

    	self.timeSinceLastUpdate = self.timeSinceLastUpdate - Backlash_UpdateInterval;
  	end
end

Error:
Interface\AddOns\Backlash\Backlash.lua:42: attempt to perform arithmetic on field 'timeSinceLastUpdate' (a nil value)
Count: 99

Call Stack:
[C]: ?
Interface\AddOns\Backlash\Backlash.lua:42: in function `Backlash_OnUpdate'
[string "*:OnUpdate"]:1: in function <[string "*:OnUpdate"]:1>

Line 41 is: self.timeSinceLastUpdate = self.timeSinceLastUpdate + elapsed;