"Basic with Callbacks" example. Works fine for Nano, but fails on the Arduino Mega 2560 - it can't compile the sketch Build options changed, rebuilding all In file included from /Users/redacted/Lib ...

I was trying to upload Blinky. I have made no changes to the example code. Arduino: 1.8.3 (Windows 10), Board: "Arduino/Genuino Uno" C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs ...