Invalid number of arguments on CFrame

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#1

I am trying to weld a mesh to the player with a certain position and rotation, but I get an error saying:
“Invalid number of arguments: 4”

  local Model = game.ReplicatedStorage.Model()
        Model.Parent = Player.Character.UpperTorso
        Model.CFrame = Player.Character.UpperTorso.CFrame
        local newWeld = Instance.new("Weld")
        newWeld.Parent = Player.Character.UpperTorso
        newWeld.Part0 = Player.Character.UpperTorso
    newWeld.Part1 = Model
    local newVector3 = Vector3.new(-0,540,0.405,-0.364)
    newWeld.C0 = CFrame.new(newVector3)
    newWeld.C1 = CFrame.Angles(89.5, math.rad(0), -89.46)
    end)

Does anyone know how to fix this?
(Note: the part is not actually named Model)

1 Like
#2

I believe you put a comma instead of a decimal point.

    local newVector3 = Vector3.new(-0.540,0.405,-0.364)
#3

I have changed this in the script, but the position and rotation are still not being set, though it did fix the error.

#4

Unfortunately, there doesn’t seem to be enough information.

For welding I recommend using the new Rigid Constraints which uses attachments. It’s a lot easier to setup and debug due to the use of attachments to visualize. Although internally Rigid Constraints uses the same maths as welds.

#5

I’ve changed the script to use RigidConstraint, but now I can’t set a position and rotation, and it has not attached to the right place.

#6

Rigid constraint is based on attachments, so you can set the Attachments position and rotation to modify it further.