Element.SetParameterByName could not find the paremeter, and yet it does

[cchulia]

Hi everyone, I’ve been running a simple script to fill some custom “instance parameters”. The script works just fine, it does what I expect it to do, but with a warning on “Element.SetParameterByName” saying it could not find any parameter by that name. And yet, it does find the parameter and fill it with the string I feed it.

If the script stopped at that point and did not fill the parameter I would assume it was a problem with the parameter name as the warning mentions but… I really don’t know where the problem is and even though the script works as intended, I would like to avoid future surprises because of this.

The warning is in spanish, but probably get the idea.

Thanks in advance.

[bvs1982]

Really hard to tell with any of the preview bubbles pinned.

PS
Why do you ungroup your Groups?
Why not use this setting for that Parameter?

Also i feel you overcomplicated your script.

Lastly
A tip; With DesignScript you can make your graphs a lot cleaner

EDIT
@cchulia

[cchulia]

You’d think I would have thought of that rather than overcomplicating things

Honestly, I didn’t even consider that, I was tinkering with nodes to see how they worked and didn’t go with the simple solution.

The script is much smaller now, yet the problem persist.

PS: DesignScript is something I have to look into.

[bvs1982]

Might be your List length.

But there is no need to do this anyways .

Are you 100% sure all the Group.Members have that Parameter?

Also pay attention to stuff like this .
(@cchulia I think this causes the error)

Would help if you post your graph with the preview bubbles pinned.

[cchulia]

That was in fact the problem. Running the script to create a screenshot with bubbles pinned to upload, I saw the “SketchPlane” elements in fact output as null, and testing the script on a clean project with groups walls would show no warnings.

Mistery solved, thanks very much. I should’ve check those elements.