Hey Roy, Kevin here, Make sure you paste the parameters on the Params panel, Check the code where bug reported, and the params you input and the Type of parameter in function. This error may be caused by a different params structure, I also update the demo code to make it more straightforward and understandable.

you can compare the full code here:

github.com/AirCodeLabs/aircode/tree/main/examples…

or you can simply copy a App from README.md Button "Depoly to AirCode" .

feel free to contact me if you still have not solved the problem.

Kevin Wu Thank you! Unfortunately I couldn't finish it.