I am unable to decode the error shown while uploading standard firmata example on my arduino uno board.
this is the error shown to me:
Arduino: 1.6.5 (Windows 8.1), Board: "Arduino/Genuino Uno"
Sketch uses 12,194 bytes (37%) of program storage space. Maximum is 32,256 bytes.
Global variables use 940 bytes (45%) of dynamic memory, leaving 1,108 bytes for local variables. Maximum is 2,048 bytes.
avrdude: ser_open(): can't open device "\.\COM5": The system cannot find the file specified.
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"
enabled in File > Preferences.