Hi @bimangunarathne
By running this line of code, you are searching for the messages.csv file in your current directory. You need to provide a file path to which your message.csv file currently sits in.
It states in the project the location of the directory (screenshot below).
As it is saved to variable csvPath, you can use that.
If you have any questions, please feel free to let me know 🙂
Thanks,
Megan