ive been working with a class of kids on Arduino robot kits from Elegoo. The software has worked all week for this kid but today it won't Compile or Upload his sketch. He can see the USB port but it doesn't seem to recognize the UNO board. he has tried multiple USB ports, restarted Arduino and switched between Beta 1.9 and 1.8 and rebooted the Mac. We can't get even a brand new sketch with nothing in it to upload.
Any help would be appreciated. I cant get to the computer myself due to social distancing.
Arduino: 1.9.0-beta (Mac OS X), Board: "Arduino Uno"
fork/exec /Users/thomas/Library/Arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-g++: no such file or directory
Error compiling for board Arduino Uno.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.