Update Item In List issue

Greetings,

Using a loop I use to set permissions I wanted to update an item on the list item as well.

List 1 ) CreateList
List 2 ) CheckOffList

I am using this entry Update list item at any site as a guide to setting a item on another list.

Here are the workflow steps


Here is how the dictionary is built


When running the workflow I receive the following error:
[color=#FF0000]Exception:Sequence contains no matching element[/color]

Can you help with getting this to work correctly?