Comment 4 for bug 1598017

Yes, you have understood me correctly. The KoboTouch driver is used for communicating with Kobo Touch and later Kobo devices. Opening the configuration will migrate the settings in the same way as connecting the device. Once it is opened, pressing the OK will save the configuration in the new format. If the configuration dialog does open with the error, it might migrate some of the configuration so that you don't lose all of the current configuration. But, it will probably just have the default options.

Deleting the file will also change the settings back to the defaults. You should open the configuration and change it to suit you.

But, before fixing this, could post a copy of device_drivers_KOBOTOUCH.py? I can see exactly where the error is happening, but I cannot reproduce it. I'd like to look at the file to see what exactly is wrong with it