Hi guys. I’m having no luck uploading Machine_USB _v5 to an arduino Nano. I’m using IDE 1.8.19. I’ve tried two different boards. I keep getting an error “assign GPIOs was not declared in this scope.” If I try a different sketch, e.g. AOG_Section_control by mtz8302, I get the following error 10 times before it gives up:
An error occurred while uploading the sketch
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x43
Can someone tell me what’s going on? I have successfully uploaded sketches in the past.