New ESP32 Compiler Error

[desert_ratt]

I had two computers that would compile ESP32 sketches and now both computers get the following compiler upload 'error':

esptool.py v3.3
Serial port /dev/cu.wchusbserial54B00099181
Connecting.....................................An error occurred while uploading the sketch
.

A fatal error occurred: Failed to connect to ESP32: No serial data received.
For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html

I visited the webpage noted above and I found no help there for this particular issue. I have also changed USB cables and that was not the problem.

The sketch is a simple BLINK sketch which compiles.

The only 'change' that has taken place is Arduino 'Library updates' which may/may not be the problem. Here is a shot of the open Tools menu if that will help in some way:

Any help with this would be greatly appreciated.

Thank you.

[desert_ratt]

Update!

I just figured out what the problem was. I had this board plugged into a terminal block. I use terminal blocks for many of my projects, but this is the first time that I used one for a ESP32 board. The terminal block has an ON/OFF switch and the switch was in the OFF position.

Dumb school boy mistake. I am very happy to have these ESP32 boards up and running.

Here's a shot of board and terminal block.

Thanks.