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"Attempt to concatenate field '?' (a userdata value)"?

Asked by

Benbebop 1049

5 years ago

01local OfficialLevels = game.Workspace.OfficialLevels:GetChildren()
02 
03 
04for i=1,#OfficialLevels do
05    local x = script.Template:Clone()
06    x.ListButton.Position = UDim2.new(1,0,(0.2 * i),0)
07    x.ListImage.Position = UDim2.new(0,0,(0.2 * i),0)
08    x.ListButton.Text = string.gsub(OfficialLevels[i].Name, "_", " ")
09    x.ListImage.Image = "rbxgameasset://Images/" .. OfficialLevels[i].IconImage.Value
10    x.ListButton.Name = OfficialLevels[i] .. "Button"
11    x.ListImage.Name = OfficialLevels[i] .. "Icon"
12    x.Parent = script.Parent
13    print("Completed " .. x.ListButton.Name .. " and " .. x.ListImage.Name)
14end

I get this error on line ten

10: attempt to concatenate field '?' (a userdata value)

But i'm not sure what it means.

I'm trying to make a list of all the values in OfficialLevels with some of the information contained in them. I made a template to be used for each item on the list which is parented to the script.

This is a server side script.

1 answer

Answered by

Reset8449879 204

5 years ago

Edited 5 years ago

The problem is you are trying to concatenate an instance with a string.

To fix this I think all you need to do is change OfficialLevels[i] to OfficialLevels[i].Name on line 10 and 11.

Thanks, cant believe I missed that. Benbebop 1049 — 5y

"Attempt to concatenate field '?' (a userdata value)"?

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