REAL-WORLD COMPUTER PROGRAMMING FOR KIDS
STEP 29: DEALING WITH A THROWN EXCEPTION (TO CATCH OR TO FUMBLE, THAT IS THE QUESTION)
As Shakespeare (or was it Francis Bacon?) said, “To Catch or to Fumble, That is the Question!”
In the last Step, we solved some problems, but when trying to load a second CSV file, got an error message:

So put your hunting gear back on as we go out to track down this bug. First, we’ll do a Desk Check to see if we can see what the problem is.
Let’s look a…