Need help with error in dynamo script

Revit
1

Hi,

I am a student and new to Revit/Dynamo.

I am working on an assignment to understand and decipher a ready script.

Encountered an error with the script and unable to resolve it.

Appreciate if anyone can advise on the below error. Thank you!

error

2

The error itself is pretty straight forward: a specified index must be a number.
It looks like you’re trying to create a dictionary but Dynamo isn’t recognizing it. What version of Dynamo are you on and what are your inputs?

3

I am on Dynamo version 2.0.

I downloaded the script from the web and i understand the script is based on version 1.2.

The inputs are integers for ‘a to d’ whereas for ‘list’ I believe is the list of elements.

inputs
inputs1792×711 234 KB

4

Dictionaries changed in 2.0. I’m guessing that’s not a valid method anymore. There should be nodes you can use to replace the codeblock.