I am having this same problem. All other updates worked fine, until the day before yesterday. Now I get the same error as tatojo, when I run apt-get upgrade:
The following packages will be upgraded: kde4libs-bin kdelibs5 kdelibs5-data kdelibs5-dev libphonon4 5 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Need to get 13,0MB of archives. After this operation, 41,0kB of additional disk space will be used. Do you want to continue [Y/n]? y Err http://dk.archive.ubuntu.com hardy-backports/universe kdelibs5-dev 4:4.0.4-0ubuntu1~hardy1 404 Not Found Err http://dk.archive.ubuntu.com hardy-backports/universe kdelibs5-data 4:4.0.4-0ubuntu1~hardy1 404 Not Found Err http://dk.archive.ubuntu.com hardy-backports/universe libphonon4 4:4.0.4-0ubuntu1~hardy1 404 Not Found Err http://dk.archive.ubuntu.com hardy-backports/universe kde4libs-bin 4:4.0.4-0ubuntu1~hardy1 404 Not Found Err http://dk.archive.ubuntu.com hardy-backports/universe kdelibs5 4:4.0.4-0ubuntu1~hardy1 404 Not Found Failed to fetch http://dk.archive.ubuntu.com/ubuntu/pool/universe/k/kde4libs/kdelibs5-dev_4.0.4-0ubuntu1~hardy1_i386.deb 404 Not Found Failed to fetch http://dk.archive.ubuntu.com/ubuntu/pool/universe/k/kde4libs/kdelibs5-data_4.0.4-0ubuntu1~hardy1_all.deb 404 Not Found Failed to fetch http://dk.archive.ubuntu.com/ubuntu/pool/universe/k/kde4libs/libphonon4_4.0.4-0ubuntu1~hardy1_i386.deb 404 Not Found Failed to fetch http://dk.archive.ubuntu.com/ubuntu/pool/universe/k/kde4libs/kde4libs-bin_4.0.4-0ubuntu1~hardy1_i386.deb 404 Not Found Failed to fetch http://dk.archive.ubuntu.com/ubuntu/pool/universe/k/kde4libs/kdelibs5_4.0.4-0ubuntu1~hardy1_i386.deb 404 Not Found E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing? -- IP 204.152.191.39 80 Not found in updating Hardy https://bugs.launchpad.net/bugs/227503 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