[Fixed ?] Arduino Uno "recipe.preproc.macros" error - IDE 1.x - Arduino Forum
Arduino specs :
BN: Arduino Uno
VID: 0x2341
PID: 0x0043
SN: 85735313932351519081
Code was provided by the official guide and correctly written. No error on this side.
I think it is on the IDE side but I'm not sure. …