[ERROR] []: Error, cannot bind to the specified serial port /dev/ttyUSB0

error message¶

[ERROR] [1628060808.596163988]: Error, cannot bind to the specified serial port /dev/ttyUSB0.

Hardware connection problem¶

First check the hardware connection, whether there is a USB device

ls /dev/ttyUSB0


# output
/dev/ttyUSB0

If not, check the connection of the cable, plug and unplug it, and test again.

Permissions issue¶

Usually caused by lack of permissions.
solution:

sudo chmod 777 /dev/ttyUSB0