It looks like the new collada packages that were pulled in recently are causing upgrade problems. I did an apt-get dist-upgrade on my system today, and it looks like there's a collision between collada-dom2.4-sp-dev and collada-dom2.4-dp-dev, and apt wants to install both at the same time: $ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following extra packages will be installed: collada-dom2.4-sp-dev The following NEW packages will be installed: collada-dom2.4-sp-dev 0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded. 47 not fully installed or removed. Need to get 0 B/206 kB of archives. After this operation, 5,285 kB of additional disk space will be used. Do you want to continue? [Y/n] (Reading database ... 333408 files and directories currently installed.) Preparing to unpack .../collada-dom2.4-sp-dev_2.4.4.1-ubuntu1~trusty1_amd64.deb ... Unpacking collada-dom2.4-sp-dev (2.4.4.1-ubuntu1~trusty1) ... dpkg: error processing archive /var/cache/apt/archives/collada-dom2.4-sp-dev_2.4.4.1-ubuntu1~trusty1_amd64.deb (--unpack): trying to overwrite '/usr/lib/cmake/collada_dom-2.4/collada_dom-config.cmake', which is also in package collada-dom2.4-dp-dev 2.4.4.0-ubuntu1~trusty1 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Errors were encountered while processing: /var/cache/apt/archives/collada-dom2.4-sp-dev_2.4.4.1-ubuntu1~trusty1_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) Thoughts? Known workarounds? Is there a known reason why apt would want to install the sp and dp versions at the same time? Up until now I think I've only had the dp version installed. If the sp and dp versions aren't supposed to be installed at the same time, can the maintainer please add a Conflicts: to the package header? -Austin _______________________________________________ ros-release mailing list ros-release@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-release