Hi when I try to upload my sketch it says the following. can anyone point me in the right direction?
Arduino: 1.8.4 (Mac OS X), Board: "Arduino Nano, ATmega328P"
Sketch uses 6858 bytes (22%) of program storage space. Maximum is 30720 bytes.
Global variables use 280 bytes (13%) of dynamic memory, leaving 1768 bytes for local variables. Maximum is 2048 bytes.
avrdude: ser_open(): can't open device "/dev/cu.wchusbserial1420": No such file or directory
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.