Problem uploading to board. See for suggestions

My new Arduino always gives me an error

Have you read the pinned posts at the top of the forum you've posted in?

How about telling us a bit more about your setup.

What board are you having problems with. What OS are you using, etc....

I use Manjaro Linux with an Arduino Uno. I press upload and my error comes.

Did you select the correct port?
Are you as member of the dialout group?
Is your board correctly recognised? lsusb and dmesg can give insight in that.

You can enable verbose output during upload (please disable verbose output during compilation) in file -> preferences in the IDE. After the error, click the copy error messages button at the right in the orange bar and next paste here in a reply.

1 Like

:arrow_up: lsusb
Arduino: 1.8.16 (Linux), Board: "Arduino Uno"

Sketch uses 3796 bytes (11%) of program storage space. Maximum is 32256 bytes.
Global variables use 255 bytes (12%) of dynamic memory, leaving 1793 bytes for local variables. Maximum is 2048 bytes.
/home/linux/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/bin/avrdude -C/home/linux/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/etc/avrdude.conf -v -patmega328p -carduino -P/dev/ttyUSB0 -b115200 -D -Uflash:w:/tmp/arduino_build_986005/sketch_oct25a.ino.hex:i

avrdude: Version 6.3-20190619
Copyright (c) 2000-2005 Brian Dean,
Copyright (c) 2007-2014 Joerg Wunsch

     System wide configuration file is "/home/linux/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/etc/avrdude.conf"
     User configuration file is "/home/linux/.avrduderc"
     User configuration file does not exist or is not a regular file, skipping

     Using Port                    : /dev/ttyUSB0
     Using Programmer              : arduino
     Overriding Baud Rate          : 115200

avrdude: ser_open(): can't open device "/dev/ttyUSB0": Permission denied

Problem uploading to board. See for suggestions.
avrdude done. Thank you.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Emphasis added :wink: Are you a member of the dialout group? If not, add yourself. After doing so you have to logout and login for the changes to take effect.

1 Like

Can you tell me how to do that, please?


Arduino - Linux.

It is not working

From your error message, it's not /dev/ttyACM but /dev/ttyUSB0

1 Like

Finally! I did it
But same error still comes

Which error? Please post it here.

1 Like

Sorry, it's fixed now.

Thanks a lot for helping!

What did you do to fix it?