Closed
Description
It appears the ATMEGA328 emulation mode is not being included in the Arduino.h core file.
The Arduino.h has an entry for the UNO_WIFI_REV2_328MODE check for the include file.
#ifdef UNO_WIFI_REV2_328MODE
#include <UNO_compat.h>
#endif
But it seems to be missing a similar check for AVR_NANO_4809_328MODE.
Should have something similar like;
#ifdef AVR_NANO_4809_328MODE
#include <NANO_compat.h>
#endif