Dear all,
I am not a developer by any means, just wondering if anyone could please help me out here.
Purpose in a simple workflow:
- Select a file from a folder to import a CSV file
- read the CSV file
- use the extracted data from CSV file to display the value of EACH row of which the column header is "invoice description"
when I implemented the above idea, the error message occurs:

Not sure how I can achieve the purpose. Please assist, many thanks
Kind regards,
Dong