Eugene: do you get the exact same error message? Could you please comment the command you run and the error message you see.
Also, since I found the "/usr/lib/python3/dist- packages/aptsources/distro.py" file is part of python3-apt, could you include the output of `apt policy python3-apt` to see which version you are running? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to software-properties in Ubuntu. https://bugs.launchpad.net/bugs/1849835 Title: add-apt-repository does not work in focal Status in software-properties package in Ubuntu: Fix Released Bug description: I tested to use a ppa because I wanted to test if mkusb will work in focal. But add-apt-repository does not work. --- lubuntu@lubuntu:~$ sudo add-apt-repository ppa:mkusb/ppa # existing ppa Traceback (most recent call last): File "/usr/bin/add-apt-repository", line 107, in <module> sp = SoftwareProperties(options=options) File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 118, in __init__ self.reload_sourceslist() File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 613, 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 Ubuntu/focal lubuntu@lubuntu:~$ sudo add-apt-repository ppa:qwerty/asdf # not existing ppa: same output Traceback (most recent call last): File "/usr/bin/add-apt-repository", line 107, in <module> sp = SoftwareProperties(options=options) File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 118, in __init__ self.reload_sourceslist() File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 613, 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 Ubuntu/focal lubuntu@lubuntu:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu Focal Fossa (development branch) Release: 20.04 Codename: focal lubuntu@lubuntu:~$ --- ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: software-properties-common 0.98.5 ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1 Uname: Linux 5.3.0-18-generic x86_64 ApportVersion: 2.20.11-0ubuntu8 Architecture: amd64 CasperVersion: 1.427 CurrentDesktop: LXQt Date: Fri Oct 25 13:10:33 2019 LiveMediaBuild: Lubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20191024) PackageArchitecture: all SourcePackage: software-properties UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1849835/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp