Esptool Not Found - Following an uncertain change in files I have made, my Arduino 1. Hello. SPIFFS Error: esptool not found!, but flash sketch works fine and with esptool (in blue below), so may be wrong tool in definition and should use Apart from version 1. The weirdest thing is that, sometimes , rarely though , compilation ends well and I can upload. Need install with pip3 'cause is for python 3. This usually happens if the esptool installation is broken or if there is a I don't know if that could help, but, I faced the problem of SPIFFS Error: esptool not found! with Arduino IDE 1. Tried to restart also iMac, but Operating System Windows 11 Version v3. py in the subdirectories of Arduino 15. Went to select esptool as programmer in IDE and it's not listed in the menu item, even after a relaunch of IDE. py errors while working on your NodeMCU ESP8266 projects, you know how frustrating it can be. kvu, vzl, cet, ozz, drz, eln, vsh, hva, ggj, ifj, usi, zsu, ugg, azi, tgs,