title: avrdude: ser_open(): can't open device "\.\COM(X)": Access is denied
body: <p>I am working on Arduino Lilypad and cannot fix this problem since long time.
  Any solution for this problem_???</p>
  
  <pre><code>     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.
  </code></pre>