This is not caused by a package from our archive but a third party package. I'm converting this to a question in case somebody can help you to locate the source.
** Changed in: libpng (Ubuntu) Status: New => Invalid ** bug changed to question: https://answers.edge.launchpad.net/ubuntu/+source/libpng/+question/54611 -- An extra copy of libpng12.so.0 keeps appearing https://bugs.launchpad.net/bugs/308121 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs