Arduino: 1.8.15 (Windows 10), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, Legacy (new can return nullptr), All SSL ciphers (most compatible), 4MB (FS:2MB OTA:~1019KB), 2, v2 Lower Memory, Disabled, None, Only Sketch, 115200"
In file included from C:\Users\msi GF65\OneDrive\Document\Arduino\libraries\grbl\examples\grblUpload\grblUpload.ino:27:0:
C:\Users\msi GF65\OneDrive\Document\Arduino\libraries\grbl/grbl.h:29:20: fatal error: avr/io.h: No such file or directory
#include <avr/io.h>
^
compilation terminated.
exit status 1
Error compiling for board NodeMCU 1.0 (ESP-12E Module).
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