Good evening I see this error when doing a "sudo apt-get upgrade". the system is a pi 3. sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following packages have been kept back: allstarlink asl-asterisk The following packages will be upgraded: asl-asterisk-tools 1 upgraded, 0 newly installed, 0 to remove and 2 not upgraded. 15 not fully installed or removed. Need to get 0 B/81.8 kB of archives. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] y Reading changelogs... Done (Reading database ... 88465 files and directories currently installed.) Preparing to unpack .../asl-asterisk-tools_1.01-20180226-12_all.deb ... Unpacking asl-asterisk-tools (1.01-20180226-12) over (0.9-20170809-1) ... dpkg: error processing archive /var/cache/apt/archives/asl-asterisk-tools_1.01-20180226-12_all.deb (--unpack): trying to overwrite '/lib/systemd/system/updatenodelist.service', which is also in package asl-asterisk 0.9-20170809-2 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Errors were encountered while processing: /var/cache/apt/archives/asl-asterisk-tools_1.01-20180226-12_all.deb E: Sub-process /usr/bin/dpkg returned an error code (1)