apt-get is unable to handle upgrade from gstreamer-0.5.0-alt1 to gstreamer-0.5.1-alt1 and higher. See also #0001840 --- # rpmquery -a |fgrep gstreamer libgstreamer-0.5.0-alt1 gstreamer-0.5.0-alt1 # apt-get install gstreamer [...] Do you want to continue? [Y/n] y E: Couldn\'t configure pre-depend gstreamer-utils for gstreamer, probably a dependency cycle. --- # apt-get -o Debug::pkgProblemResolver=true -o Debug::pkgOrderList=true install gstreamer Reading Package Lists... Collecting File Provides... Building Dependency Tree... Starting Starting 2 Done The following extra packages will be installed: gstreamer-utils libgstreamer The following packages will be upgraded gstreamer libgstreamer The following NEW packages will be installed: gstreamer-utils ** Pass A Visit gstreamer Visit gstreamer-utils Visit libgstreamer Leave libgstreamer 1,0 Leave gstreamer-utils 1,0 Leave gstreamer 1,0 ** Pass B Visit libgstreamer Visit gstreamer Visit gstreamer-utils Leave gstreamer-utils 1,0 Leave gstreamer 1,0 Leave libgstreamer 1,0 ** Pass C Visit gstreamer-utils Leave gstreamer-utils 1,0 Visit gstreamer Leave gstreamer 1,0 Visit libgstreamer Leave libgstreamer 1,0 ** Pass D Visit gstreamer-utils Leave gstreamer-utils 1,0 Visit gstreamer Leave gstreamer 1,0 Visit libgstreamer Leave libgstreamer 1,0 ** Unpack ordering done gstreamer-utils 0,0 gstreamer 0,0 libgstreamer 0,0 2 packages upgraded, 1 newly installed, 0 removed and 4 not upgraded. Need to get 0B/580kB of archives. After unpacking 21,5kB will be freed. Do you want to continue? [Y/n] ** Pass A Visit gstreamer Visit gstreamer-utils Visit libgstreamer Leave libgstreamer 1,0 Leave gstreamer-utils 1,0 Leave gstreamer 1,0 ** Pass B Visit libgstreamer Visit gstreamer Visit gstreamer-utils Leave gstreamer-utils 1,0 Leave gstreamer 1,0 Leave libgstreamer 1,0 ** Pass C Visit gstreamer-utils Leave gstreamer-utils 1,0 Visit gstreamer Leave gstreamer 1,0 Visit libgstreamer Leave libgstreamer 1,0 ** Pass D Visit gstreamer-utils Leave gstreamer-utils 1,0 Visit gstreamer Leave gstreamer 1,0 Visit libgstreamer Leave libgstreamer 1,0 ** Unpack ordering done gstreamer-utils 0,0 gstreamer 0,0 libgstreamer 0,0 E: Couldn\'t configure pre-depend gstreamer-utils for gstreamer, probably a dependency cycle.
Fixed in apt-0.5.5cnc1-alt1