Hi guys I've been doing some work on a Infer Red project & I've check to see whether or not I'm on the right port or not (And I am.). I it helps helps These are my error messages
WARNING: Spurious .github folder in 'MFRC522' library
Multiple libraries were found for "IRremote.h"
Sketch uses 9,962 bytes (32%) of program storage space. Maximum is 30,720 bytes.
Global variables use 429 bytes (20%) of dynamic memory, leaving 1,619 bytes for local variables. Maximum is 2,048 bytes.
avrdude: ser_open(): can't open device "\.\COM31": The system cannot find the file specified.
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
Cheers Tim Tam