29-12-2018, 17:36
Did you compile with the correct version of Arduino board, as advised by werk.
You can check this in the first entry of the menu, where you are selection your board.
Best regards, engolling
Quote:IMPORTANT:
Always compile using the provided libraries.
Tested with Arduino IDE 1.8.4 using AVR Boards Manager 1.6.20.
It not work reliably with AVR Boards Manager 1.6.22 and 1.6.23 usually installed by default with Arduino IDE >= 1.8.6
You can check this in the first entry of the menu, where you are selection your board.
Best regards, engolling

