"sudo aptitude install libboost-filesystem-dev" makes it a bit more clear, I had libboost-filesystem1.37-dev installed:
Building dependency tree Reading state information... Done Reading extended state information Initializing package states... Done The following packages are BROKEN: libboost-date-time1.37-dev libboost-filesystem1.37-dev libboost-graph1.37-dev libboost-iostreams1.37-dev libboost-program-options1.37-dev libboost-python1.37-dev libboost-regex1.37-dev libboost-serialization1.37-dev libboost-signals1.37-dev libboost-test1.37-dev libboost-thread1.37-dev libboost-wave1.37-dev libboost1.37-dev libboost1.37-doc The following NEW packages will be installed: libboost-date-time-dev{a} libboost-dev{a} libboost-doc{a} libboost-filesystem-dev libboost-graph-dev{a} libboost-graph1.34.1{a} libboost-iostreams-dev{a} libboost-program-options-dev{a} libboost-program-options1.34.1{a} libboost-python-dev{a} libboost-regex-dev{a} libboost-regex1.34.1{a} libboost-serialization-dev{a} libboost-serialization1.34.1{a} libboost-signals-dev{a} libboost-signals1.34.1{a} libboost-test-dev{a} libboost-test1.34.1{a} libboost-thread-dev{a} libboost-wave-dev{a} libboost-wave1.34.1{a} The following packages will be upgraded: libboost-date-time1.34.1 libboost-filesystem1.34.1 libboost-iostreams1.34.1 libboost-python1.34.1 libboost-thread1.34.1 5 packages upgraded, 21 newly installed, 0 to remove and 36 not upgraded. Need to get 26.1MB of archives. After unpacking 141MB will be used. The following packages have unmet dependencies: libboost-graph1.37-dev: Conflicts: libboost-graph-dev but 1.34.1-15ubuntu2 is to be installed. libboost-date-time1.37-dev: Conflicts: libboost-date-time-dev but 1.34.1-15ubuntu2 is to be installed. libboost1.37-dev: Conflicts: libboost-dev but 1.34.1-15ubuntu2 is to be installed. libboost1.37-doc: Conflicts: libboost-doc but 1.34.1-15ubuntu2 is to be installed. libboost-iostreams1.37-dev: Conflicts: libboost-iostreams-dev but 1.34.1-15ubuntu2 is to be installed. libboost-python1.37-dev: Conflicts: libboost-python-dev but 1.34.1-15ubuntu2 is to be installed. libboost-signals1.37-dev: Conflicts: libboost-signals-dev but 1.34.1-15ubuntu2 is to be installed. libboost-serialization1.37-dev: Conflicts: libboost-serialization-dev but 1.34.1-15ubuntu2 is to be installed. libboost-wave1.37-dev: Conflicts: libboost-wave-dev but 1.34.1-15ubuntu2 is to be installed. libboost-filesystem1.37-dev: Conflicts: libboost-filesystem-dev but 1.34.1-15ubuntu2 is to be installed. libboost-test1.37-dev: Conflicts: libboost-test-dev but 1.34.1-15ubuntu2 is to be installed. libboost-thread1.37-dev: Conflicts: libboost-thread-dev but 1.34.1-15ubuntu2 is to be installed. libboost-regex1.37-dev: Conflicts: libboost-regex-dev but 1.34.1-15ubuntu2 is to be installed. libboost-program-options1.37-dev: Conflicts: libboost-program-options-dev but 1.34.1-15ubuntu2 is to be installed. The following actions will resolve these dependencies: Remove the following packages: libboost-date-time1.37-dev libboost-filesystem1.37-dev libboost-graph1.37-dev libboost-iostreams1.37-dev libboost-program-options1.37-dev libboost-python1.37-dev libboost-regex1.37-dev libboost-serialization1.37-dev libboost-signals1.37-dev libboost-system1.37-dev libboost-test1.37-dev libboost-thread1.37-dev libboost-wave1.37-dev libboost1.37-dev Keep the following packages at their current version: libboost-doc [Not Installed] Leave the following dependencies unresolved: libboost-dev recommends libboost-doc Score is -3855 ** Changed in: boost1.35 (Ubuntu) Status: New => Invalid ** Changed in: boost (Ubuntu) Status: New => Invalid -- [jaunty] The following packages have unmet dependencies: libboost-filesystem-dev: Depends: libboost-dev (= 1.34.1-15ubuntu1) https://bugs.launchpad.net/bugs/331499 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