Raspberry Pi 4

Installation
1

Hello!
Have any got Hassio to work on Pi 4?
Tested with Raspbian/buster and following LINK
But i cant get add-apt-repository universe to work, error:

root@raspberrypi:~# add-apt-repository universe
Traceback (most recent call last):
  File "/usr/bin/add-apt-repository", line 95, in <module>
    sp = SoftwareProperties(options=options)
  File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 109, in __init__
    self.reload_sourceslist()
  File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 599, in reload_sourceslist
    self.distro.get_sources(self.sourceslist)
  File "/usr/lib/python3/dist-packages/aptsources/distro.py", line 93, in get_sources
    (self.id, self.codename))
aptsources.distro.NoDistroTemplateException: Error: could not find a distribution template for Raspbian/buster
2

same here. but I had hassio working fine for a week without it, but then it crashed twice so now I’m revisiting the issue