Attempt to index nil with 'Create'

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1

for i , v in pairs(LeftArmModel:GetDescendants()) do
if v:IsA(“Texture”) or v:IsA(“BasePart”) or v:IsA(“Decal”) then
v.Transparency = .1
TweenService:Create(v,TweenInfo.new(.3),{Transparency = .8}):Play()
end

trying to make jojo barrage effect and this happen

2 
local TweenService = game:GetService("TweenService")

for i , v in pairs(LeftArmModel:GetDescendants()) do
    if v:IsA(“Texture”) or v:IsA(“BasePart”) or v:IsA(“Decal”) then
        v.Transparency = .1
        TweenService:Create(v,TweenInfo.new(.3),{Transparency = .8}):Play()
    end
end