Lua script, lerp function

Hi,

can anyone tell me what i'm doing wrong in the following....

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require("vec")
this.inlets = 3
this.outlets = 2

local v1 ={1.,0.}
local v2 ={2.,2.}

for i = 0, 100 do
local t = i / 100
        local f = vec2.lerp(v1,v2,t)
            outlet(0,f)    

end