Error regarding Dictionary key in the workflow

Hello All,
While running the workflow, I’m getting an error like “The given key was not present in the dictionary.” Instead I’m not using any dictionary here. Please help me in resolving this issue.
Please find the attached image.


Can you please check your variables and argumnets if there is any?

Also try to analyze the project and see if there are any errors


Run in debug mode to understand at which activity this error is occurring
Make sure you don’t have any blank rows in excel


Even in debug mode I’m unable to find the errors at any particular activity. within a sec I’m getting that error.


Did you try to analyze the project?

looks like some variable or argument issue only


I have given only two variables for two excel files.
FG_Calculation.xaml (29.3 KB)