Public bug reported: I'm trying to get GCC 7 on a machine to test C++17 and std::byte. According to https://askubuntu.com/questions/859256/how-to-install-gcc-7 -or-clang-4-0:
$ sudo add-apt-repository ppa:ubuntu-toolchain-r/test 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 114, in __init__ self.reload_sourceslist() File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 607, 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 Ubuntu/zesty ********** $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu Zesty Zapus (development branch) Release: 17.04 Codename: zesty $ uname -a Linux goldmont 4.8.0-27-generic #29-Ubuntu SMP Thu Oct 20 21:03:13 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux ** Affects: apt (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1698704 Title: NoDistroTemplateException: Error: could not find a distribution template for Ubuntu/zesty To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1698704/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs