Have you passed input to this workflow properly or not. Make sure Datatype should be same for both arguments. And also check at the time of declaring Config variable whether data was assigned to this dictionary variable or not. First try to print it there and debug the workflow to get to know about exact error.
didn’t clearly understand. What i attached is a simple example. Based on the excel file name mentioned in the config file, the excel application should open using In-config(“Result”).tostring
I’m not using this in any project. I created this small workflow just for my understanding. Idea is to get values from config file. based on what i attached can you let me know the issue.