the solution is : sudo dpkg --remove --force-remove-reinstreq adobe- flashplugin
found on french ubuntu forum answer given by jean phi 43. After you can install flash player non free i guess. -- [Karmic] Removing Flash Plugin causes annoying package managing problems https://bugs.launchpad.net/bugs/412944 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