Pre-patch 10.0 lua error.

[TreizeEU]

I'm getting this lua error since the 10.0 pre-patch.
It doesn't appear to prevent the addon from working.

375x Interface/AddOns/tekticles/tekticles.lua:3: Usage: self:SetFont(fontFile, height, flags) [string "=[C]"]: in function SetFont'
[string "@Interface/AddOns/tekticles/tekticles.lua"]:3: in function <Interface/AddOns/tekticles/tekticles.lua:2>
[string "@Interface/AddOns/tekticles/tekticles.lua"]:28: in function <Interface/AddOns/tekticles/tekticles.lua:13>
[string "=[C]"]: ?
[string "=[C]"]: in function LoadAddOn' [string "@Interface/FrameXML/UIParent.lua"]:530: in function UIParentLoadAddOn'
[string "@Interface/FrameXML/UIParent.lua"]:719: in function `PlayerChoice_LoadUI'
[string "@Interface/FrameXML/UIParent.lua"]:2202: in function <Interface/FrameXML/UIParent.lua:1350>

Locals:
(*temporary) = AchievementFont_Small {
0 =
}
(*temporary) = "tekticles\CalibriBold.ttf"
(*temporary) = 12
(*temporary) = nil
`