I entered the code from page 53 of Ben Fry's Visualizing Data (great book!) - the sketch that allows you to use your own map to make a locations.tsv file, clicking on the places where you want the data to be represented.  I have checked my typing several times, can't find any errors, no errors for that page reported on the O"Reilly site either.

I think I understand the flow of the program.  My execution gets down to the mousePressed function, displaying both the map and the "Click the mouse to begin" message in the terminal.  Then I get the error.  So what is this "ArrayIndexOutOfBoundsException 1" error?  I assume I did something wrong but can't figure out what it was.  Any assistance is appreciated.

tom