Traceback (most recent call last):
  File "./start-mirrors.py", line 28, in ?
    mirrors.mirrorlist.populate_all_caches()
  File "/srv/tg/mirrormanager/mirrors/mirrorlist.py", line 142, in populate_all_caches
    populate_directory_cache(r.directory)
  File "/srv/tg/mirrormanager/mirrors/mirrorlist.py", line 106, in populate_directory_cache
    directory_name_to_mirrorlist[directory.name] = (repo.prefix, repo.arch.name)
AttributeError: 'NoneType' object has no attribute 'name'