MrMe01 wrote: > apt-cache policy is the same, and so is apt libapt-pkg5.0.
The same as what? > What can I do to rectify this? It depends on what you have installed. But generally, you have mixed two Ubuntu versions on one system, so you have to make sure to upgrade or downgrade packages so you only have packages installed from one version; and then remove the sources.list entry for the other. apt list can help you figure out which packages are wrong. In any case, this is the wrong place for this, as I mentioned before. Markus Neubauer (mn-ubuntu) wrote: > The Problem occured also using a Zentyal 5.1 community version Again, that's not the problem this bug is about, and if they want to build their distribution by mixing Ubuntu releases; again, that's not supported. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1644643 Title: apt failed to run due to link time reference error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1644643/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
