Hi! I'm updating my 3D printer and I tried uploading and got this error saying access is denied. Here is the error message below. Thank you
Arduino: 1.6.9 (Windows 10), Board: "Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)"
Sketch uses 117,850 bytes (46%) of program storage space. Maximum is 253,952 bytes.
Global variables use 4,215 bytes (51%) of dynamic memory, leaving 3,977 bytes for local variables. Maximum is 8,192 bytes.
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega2560 -cwiring -PCOM3 -b115200 -D -Uflash:w:C:\Users\maxwe\AppData\Local\Temp\build5293bcfb34d481e68504cd52e8acbf99.tmp/ROBO3DR1PLUSV2.ino.hex:i
avrdude: Version 6.0.1, compiled on Apr 15 2015 at 19:59:58
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"
Using Port : COM3
Using Programmer : wiring
Overriding Baud Rate : 115200
avrdude: ser_open(): can't open device "\.\COM3": Access is denied.
avrdude: ser_drain(): read error: The handle is invalid.
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.