avrdude: ser_open(): can't open device "\\.\COM10": Access is denied.

I am working on Arduino Lilypad and cannot fix this problem since long time.
Any solution for this problem_???

avrdude: Version 6.3-20171130
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch

System wide configuration file is "E:\Softwares\arduino-nightly\hardware\tools\avr/etc/avrdude.conf"

Using Port : COM10
Using Programmer : arduino
Overriding Baud Rate : 57600
avrdude: ser_open(): can't open device "\.\COM10": Access is denied.

avrdude done. Thank you.

Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

Do not hijack. Thread split (from avrdude: ser_open(): can't open device "\\.\COM3": Access is denied.)

Any solution for this problem_???

Yes. If you had read through the thread you hijacked you would have at least one thing to try.

moderator edit: http://forum.arduino.cc/index.php?topic=51489.0 updated

I am working with Lilypad for the first time and I am not getting what you mean to say by do not Hijack.
Please explain me clearly or tell me the steps I need to go through for solving my error.

201712099:
I am not getting what you mean to say by do not Hijack.

hijack thread = occurs when one individual creates a separate conversation
this is YOU

the moderator split your post from the original post

201712099:
tell me the steps I need to go through for solving my error.

re-read all the posts in that original thread