I'm trying to use Software Properties (software-properties-gtk) to install nvidia drivers. When I open the Additional Drivers tab it just says "searching for additional drivers..." and then Apport comes up telling me Ubuntu has had an internal error. The available additional drivers never show up, the list just stays empty.

When I run software-properties-gtk from the terminal I get the following output right before the crash:

Traceback (most recent call last):

  File "/usr/lib/python3/dist-packages/gi/overrides/GLib.py", line 634, in <lambda>

    return (lambda data: callback(*data), user_data)

  File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 1323, in show_drivers

    (overall_status, icon, drivers) = self.gather_device_data(self.devices[device])

  File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 1277, in gather_device_data

    description = base_string.format(base_description=description, licence=licence)

KeyError: 'license'

Is this a known bug? Can I fix it?