Hello I can reproduce this bug on Ubuntu 12.04. (and all supported previous Ubuntu versions).
I can add that this bug is NOT SYSTEMATIC, i mean on a given system if you use add-apt-repository then remove the ppa many times consecutively, sometimes the ppa is added correctly, sometimes not. But i can't manage to establish a rule saying why/when the bug appears. IMHO, this bug is Importance=High , because it blocks the updates on the user's system. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/789859 Title: if PPA contains a forward slash, when adding an already added, but disabled PPA, add-apt-repository adds invalid deb line to sources file To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/789859/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs