ESP32 Arduino uploading problem

[perge81]

MacOS 10.15.7, Arduino 1.8.19. Adafruit ESP32 Huzzah.
My IDE was working and then suddenly stopped uploading to the ESP32 board with error:
java.io.IOException: Cannot run program "___REMOVE___/esptool": error=2, No such file or directory
I changed to the Arduino IDE 2.0.4 and it works fine there.
The directory ~/Library/Arduino15/packages/esp32/tools/esptool_py/4.5 has esptool in it but the 1.8.19 IDE can no longer find it.
I would like to use the legacy IDE. What to do?

[perge81]

I found the fix on the Arduino forum:
See https://github.com/espressif/arduino-esp32/issues/7923
The workaround fixed the 1.8.19 IDE upload problem and the tools/ESP32 Sketch Data Upload problem both related to not finding esptool.
Arduino's IDE 2.0.4 does not support Sketch Data Upload so to do that you need to use IDE 1.xx.

[anne33xx]

Well, how to deal with such a problem? I don't know anymore

[evans_picolo]

Hello,

Does the problem go away when you close de IDE and re-open?

[perge81]

I found the solution on the Arduino site. Apparently the lastest version of esptool was not supported by the version the ESP32 core. I deleted the core and reinstalled it and now everything works again.