Sorry, but the following packages have unmet dependencies: task-kde: Depends: pixie but it is not installable Depends: kformula but it is not installable E: Sorry, broken packages --- Sorry, but the following packages have unmet dependencies: task-kde-devel: Depends: xlibs-dev but it is not installable or xlibs6g-dev but it is not installable Depends: libxml2-dev but it is not installable E: Sorry, broken packages --- John