Regarding the instructions to add the PPA, they are on the overview page (https://launchpad.net/~hardware-certification/+archive/ubuntu/public):
“You can update your system with unsupported packages from this untrusted PPA by adding ppa:hardware-certification/public to your system's Software Sources. (Read about installing)” First, let's try to see if the package installation was successfull or not: 1. type : plainbox --version You should see `0.26` 2. If 1. was successful, try running `checkbox-cli`. If not, you may have to uninstall both `python3-checkbox-ng` and `checkbox-ng` packages before retrying to install the latest version: sudo apt-get remove --purge python3-checkbox-ng checkbox-ng Then try installing the packages again. Hope this helps! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1561093 Title: All output lost from testing session. Could not read /tmp/submission.xml To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/checkbox/+bug/1561093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs