Raspbian Stretch issue ppa

[Kunzaii]

Hi, I'm trying to do this on my raspberry pi 3 (Stretch):
sudo apt-add-repository ppa:bitcoin/bitcoin

but it's not working... any help? Is it because this is a too recent version of Debian?

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 89, in get_sources
    (self.id, self.codename))
aptsources.distro.NoDistroTemplateException: Error: could not find a distribution template for Raspbian/stretch

[Turrican]

me 2. I have the same error