Selecting previously deselected package libdjvulibre21. Unpacking libdjvulibre21 (from .../libdjvulibre21_3.5.20-5_i386.deb) ... dpkg: error processing /var/cache/apt/archives/libdjvulibre21_3.5.20-5_i386.deb (--unpack):trying to overwrite `/usr/share/djvu/osi/cs/messages.xml', which is also in package libdjvulibre15 This package is preventing evince from being configured since it's an evince dependency.