sudo apt-get install k9copy Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: k9copy 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 0B/646kB of archives. After unpacking 1749kB of additional disk space will be used. (Reading database ... 140685 files and directories currently installed.) Unpacking k9copy (from .../k9copy_1.1.0~beta1-0ubuntu2_i386.deb) ... dpkg: error processing /var/cache/apt/archives/k9copy_1.1.0~beta1-0ubuntu2_i386.deb (--unpack): trying to overwrite `/usr/share/apps/k9copy/k9copyui.rc', which is also in package k9copy-1.0.0 dpkg-deb: subprocess paste killed by signal (Broken pipe) Errors were encountered while processing: /var/cache/apt/archives/k9copy_1.1.0~beta1-0ubuntu2_i386.deb E: Sub-process /usr/bin/dpkg returned an error code (1)