No output to serial monitor

I trying the simplest print statement to see output in the serial monitor, but nothing appears. I'm sing IDE 2.3.2 on a Mac, with a ESP32 dev board.

Compile and upload are fine, but there's no output the the serial monitor. See below.

What am I doing wrong?

I found the answer:

Screenshot 2024-03-24 at 14.58.42

Now it works....