Hi. i am using arduino UNO for my project. I am doing a project on LCD interfacing with Arduino UNO. My operating system is Windows10. while upoading the arduino sketch to my arduino UNO board i get the following error:
avrdude: ser_open(): can't open device "\\.\COM14": Access is denied.
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
I went to the arduino site but i got no solution the above error. I was able to program my arduino uno with same sketch while ago but i have started receiving the above error. can you please tell me the possible reason for this error.