B4R Question avrdude: ser_open(): can't open device "\\.\COM8": The semaphore timeout period has expired.

[Beja]

Hi All,
After using this example successfully many time in the past, the case was not the same today and I got this error message..
Any clue appreciated.

B4R Version: 2.51
Parsing code. (0.00s)
Compiling code. (0.13s)
Building project (0.82s)
Compiling & deploying Ino project (Arduino/Genuino Uno - COM8) Error
Loading configuration...
Initializing packages...
Preparing boards...
Verifying...
Uploading...
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:\Arduino\B4R\Arduino\hardware\tools\avr/etc/avrdude.conf"
Using Port : COM8
Using Programmer : arduino
Overriding Baud Rate : 115200
avrdude: ser_open(): can't open device "\\.\COM8": The semaphore timeout period has expired.
avrdude done. Thank you.
An error occurred while uploading the sketch

 

[Erel]

Try to disconnect and connect again the board. Make sure that it is connected to COM8.

 

[Beja]

Try to disconnect and connect again the board. Make sure that it is connected to COM8.

Thanks Erel,
Worked after disconnecting and reconnecting the board again.