If you do not understand a warning, you can look up a verbose version of the warning in perldiag or you can use the diagnostics pragma in your code.
Another funny section of his post includes explaining your problem out loud.
Explain your problem aloud. Actually say the words.This has happened to me so many times. I call up a IT buddy and while I'm explaining my problem, ding,the answer hits me like a ton of bricks.
For a couple of years I had the pleasure of working with a really good programmer who could solve almost anything. When I got really stuck I would walk over to his desk and start to explain my problem. Usually I did not made it past the third sentence without saying ``Never mind---I got it''. He almost never missed either.
Since you will probably need to do this so much, I recommend some sort of plush toy to act as your Perl therapist so you do not annoy your colleagues. I have a small bear that sits on my desk and I explain problems to him. My wife does not even pay attention when I talk to myself anymore.