Traceback (most recent call last):
  File "/usr/lib/update-notifier/list-oem-metapackages", line 57, in <module>
    write_oem_metapackage_list(cache, STAMP_FILE)
  File "/usr/lib/update-notifier/list-oem-metapackages", line 30, in write_oem_metapackage_list
    packages = UbuntuDrivers.detect.system_device_specific_metapackages(
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 593, in system_device_specific_metapackages
    for p in packages_for_modalias(apt_cache, alias):
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/detect.py", line 200, in packages_for_modalias
    apt_cache_hash = hash(package.get_fullname() for package in apt_cache.packages)
AttributeError: 'Cache' object has no attribute 'packages'