I am new to Arduino and have a Mac running 10.12.3 with 2 x Type C USB. I try uploading a sketch but get the following error.
Flashing with command:/Users/rbaum/.arduino-create/arduino/avrdude/6.3.0-arduino8/bin/avrdude -C/Users/rbaum/.arduino-create/arduino/avrdude/6.3.0-arduino8/etc/avrdude.conf -q -q -patmega328p -carduino -P/dev/cu.usbserial-DN00Z0NT -b115200 -D -Uflash:w:/var/folders/c5/20v8xp792713hcp40l5x4ft40000gp/T/arduino-create-agent306546778/SIK_circuit01_blink.hex:i
avrdude: ser_open(): can't open device "/dev/cu.usbserial-DN00Z0NT": Resource busy
Executing command: exit status 1
I tried it on my old Mac with USB 3 and it works fine...
Does anyone know what I can do to fix?
Thanks in advance for your thoughts...