Arduino: 1.6.10 (Windows 7), Board: "Arduino/Genuino Uno"
Sketch uses 3,936 bytes (12%) of program storage space. Maximum is 32,256 bytes. Global variables use 382 bytes (18%) of dynamic memory, leaving 1,666 bytes for local variables. Maximum is 2,048 bytes. avrdude: ser_open(): can't open device "\.\COM1": 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" option enabled in File -> Preferences.