Error: "Unable to cast view to Object", what is wrong with my script?

I don't exactly know what to do or how to fix it. I'm not allowed to use locals or Instance.name. The error seems to print out "Unable to cast view to object". What seems to be the problem with my script? It'd very happy if someone could give me a corrected version of the script.

IntroDoorsA = function()
    game.Workspace.Map.Intro._IntroA:GetChildren()
    for i, v in pairs(game.Workspace.Map.Intro._IntroA:GetChildren()) do 

    game:GetService('TweenService'):Create(
        game.Workspace.Map.Intro._IntroA:GetChildren(),
        TweenInfo.new(1,Enum.EasingStyle.Bounce,Enum.EasingDirection.Out,0,false,0),
        {CFrame = game.Workspace.Map.Intro._IntroA.CFrame + Vector3.new(-7.5,0,0)}):Play()
    end
end

IntroDoorsB = function()
    game.Workspace.Map.Intro._IntroB:GetChildren()
    for i, v in pairs(game.Workspace.Map.Intro._IntroB:GetChildren()) do 

    game:GetService('TweenService'):Create(
        game.Workspace.Map.Intro._IntroB:GetChildren(pairs),
        TweenInfo.new(1,Enum.EasingStyle.Bounce,Enum.EasingDirection.Out,0,false,0),
        {CFrame = game.Workspace.Map.Intro._IntroB.CFrame + Vector3.new(7.5,0,0)}):Play()
    end
end

wait(0.7)
IntroDoorsA()
IntroDoorsB()