How come the console prints error `avrdude: usbdev_open(): did not find any USB device “usb”`?

Question

How come when I try to push a sketch to my Arduino I see this error on the console? The subsequent sketch does not work.

avrdude: usbdev_open(): did not find any USB device "usb"

I've already added myself to the dialout group,

sudo usermod -aG dialout $USER

And, I did that after I confirmed the dialout group owns the device (in my case /dev/ttyACM0:

$ ls /dev/ttyACM0 -l
crw-rw---- 1 root dialout 166, 0 Oct 12 03:15 /dev/ttyACM0

Answer 1

This is because in the IDE I was using

• Sketch → Upload Using Programmer [Ctrl + Shift + U]

However, I should have been using

• Sketch → Upload [Ctrl + U]

Answer 2

Try "Tools> Port:> then select your board" Make sure your pc hasn't assigned new com port to the attached usb (Arduino)