I'm trying to compile a simple blink program for the board AVR XMEGA-A1 XPLAINED
It can't find crtatxmega128a1.o
It can't find -lm, -lgcc -lc and -latxmega128a1
However, they are here:
arduino-1.8.13/hardware/tool/avr/avr/lib/avrxmega7
Possibly caused by deleting previous version 0.9.1 ?