Hi all, I’m trying to install a profile which resulted from calibration, but I get the error message “‘NoneType’ object has no attribute ‘DeviceKey’” when I try to install it. I’ve seen the thread on https://hub.displaycal.net/issue/6099/ and thus reinstalled my display driver, including the necessary reboots, but no luck there. Also reinstalled DisplayCAL. How can … Continue reading ‘NoneType’ object has no attribute ‘DeviceKey’