Public bug reported: In 4.2.2-0ubuntu2, files libjulius-config and libsent-config were moved to libjulius-dev, but the package dependencies were not modified to avoid file conflicts so downgrading fails as follows:
$ sudo apt-get install julius=4.2.2-0ubuntu1 libjulius-dev=4.2.2-0ubuntu1 Reading package lists... Done Building dependency tree Reading state information... Done The following package was automatically installed and is no longer required: libjcode-pm-perl Use 'apt-get autoremove' to remove it. Suggested packages: julius-voxforge The following packages will be DOWNGRADED: julius libjulius-dev 0 upgraded, 0 newly installed, 2 downgraded, 0 to remove and 0 not upgraded. Need to get 0 B/1,552 kB of archives. After this operation, 60.4 kB disk space will be freed. Do you want to continue [Y/n]? dpkg: warning: downgrading julius from 4.2.2-0ubuntu2 to 4.2.2-0ubuntu1 (Reading database ... 477242 files and directories currently installed.) Preparing to replace julius 4.2.2-0ubuntu2 (using .../julius_4.2.2-0ubuntu1_amd64.deb) ... Unpacking replacement julius ... dpkg: error processing /var/cache/apt/archives/julius_4.2.2-0ubuntu1_amd64.deb (--unpack): trying to overwrite '/usr/bin/libsent-config', which is also in package libjulius-dev 4.2.2-0ubuntu2 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) dpkg: warning: downgrading libjulius-dev from 4.2.2-0ubuntu2 to 4.2.2-0ubuntu1 Preparing to replace libjulius-dev 4.2.2-0ubuntu2 (using .../libjulius-dev_4.2.2-0ubuntu1_amd64.deb) ... Unpacking replacement libjulius-dev ... Processing triggers for man-db ... Errors were encountered while processing: /var/cache/apt/archives/julius_4.2.2-0ubuntu1_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) $ Please set Breaks and Replaces in debian/control. ** Affects: julius (Ubuntu) Importance: Undecided Status: New ** Tags: raring regression-release -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1152381 Title: Cannot downgrading (regression) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/julius/+bug/1152381/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs