i have a problem in uploading the sketch
Arduino: 1.8.5 (Windows 10), Board: "Arduino/Genuino Uno"
Sketch uses 940 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
C:\Users\Dell\Desktop\arduino-1.8.5\hardware\tools\avr/bin/avrdude -CC:\Users\Dell\Desktop\arduino-1.8.5\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM1 -b115200 -D -Uflash:w:C:\Users\Dell\AppData\Local\Temp\arduino_build_742949/blinking_led.ino.hex:i
avrdude: Version 6.3, compiled on Jan 17 2017 at 12:00:53
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "C:\Users\Dell\Desktop\arduino-1.8.5\hardware\tools\avr/etc/avrdude.conf"
Using Port : COM1
Using Programmer : arduino
Overriding Baud Rate : 115200
avrdude: ser_open(): can't open device "\.\COM1": The system cannot find the file specified.
avrdude done. Thank you.
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.