Good day everyone, just now trying to upgrade my system I got an error both of apt and aptitude saying that the hash sum of package libtqtinterface doesn't and refusing to proceed (see below for the whole error message). Has anybody seen this? How to solve it, wait for someone to repair the affected package on the server? Kind regards, Stefan $ sudo apt upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following packages have been kept back: xul-ext-https-everywhere xul-ext-ublock-origin The following packages will be upgraded: arts-trinity kappfinder-trinity kate-trinity kcontrol-trinity kdesktop-trinity kfind-trinity khelpcenter-trinity kicker-trinity klipper-trinity kmenuedit-trinity konqueror-nsplugins-trinity konqueror-trinity konsole-trinity kpager-trinity kpersonalizer-trinity ksmserver-trinity ksplash-trinity ksysguard-trinity ksysguardd-trinity ktip-trinity libakode2 libart-2.0-2 libarts1c2a-trinity libartsc0-trinity libcaldav libcarddav libdbus-1-tqt libkonq4-trinity libr0 libtqt3-integration-trinity libtqt3-mt libtqtinterface openssh-client openssh-server openssh-sftp-server ssh tdebase-data-trinity tdebase-runtime-data-common-trinity tdebase-tdeio-plugins-trinity tdebase-trinity tdebase-trinity-bin tdebase-trinity-doc tdelibs-data-trinity tdelibs-trinity tdelibs14-trinity tdepasswd-trinity tdeprint-trinity tdm-trinity tqca-tls twin-trinity 50 upgraded, 0 newly installed, 0 to remove and 2 not upgraded. Need to get 7496 B/58.3 MB of archives. After this operation, 116 kB of additional disk space will be used. Do you want to continue? [Y/n] Get:1 http://mirror.xcer.cz/trinity-sb stretch/main-r14 amd64 : amd64 4:14.0.6-0debian9.0.0+0 [7496 B] Err:1 http://mirror.xcer.cz/trinity-sb stretch/main-r14 amd64 libtqtinterface amd64 4:14.0.6-0debian9.0.0+0 Hash Sum mismatch Hashes of expected file: - SHA256:3275fe533fb502715b4dba35c0433e1c0ad5b878f5cbef04e6168dc629123b5b - SHA1:d7007f1609c646f0ea5a10c927d0bd31264cb40c [weak] - MD5Sum:1d82b099aae11283763bc2fd3fadb2d1 [weak] - Filesize:7496 [weak] Hashes of received file: - SHA256:096e934ceb12040d7b0142825dc721822c761391b10cf6436030690a81c5327a - SHA1:bf0b7def764330131603b61f718fd89570086faa [weak] - MD5Sum:9e802b8490b2f85104a8142d21ae3306 [weak] - Filesize:7496 [weak] Last modification reported: Mon, 04 Mar 2019 09:09:44 +0000 Fetched 7496 B in 0s (30.3 kB/s) E: Failed to fetch http://mirror.xcer.cz/trinity-sb/pool/main-r14/libt/libtqtinterface/libtqtinterface_14.0.6-0debian9.0.0+0_amd64.deb Hash Sum mismatch Hashes of expected file: - SHA256:3275fe533fb502715b4dba35c0433e1c0ad5b878f5cbef04e6168dc629123b5b - SHA1:d7007f1609c646f0ea5a10c927d0bd31264cb40c [weak] - MD5Sum:1d82b099aae11283763bc2fd3fadb2d1 [weak] - Filesize:7496 [weak] Hashes of received file: - SHA256:096e934ceb12040d7b0142825dc721822c761391b10cf6436030690a81c5327a - SHA1:bf0b7def764330131603b61f718fd89570086faa [weak] - MD5Sum:9e802b8490b2f85104a8142d21ae3306 [weak] - Filesize:7496 [weak] Last modification reported: Mon, 04 Mar 2019 09:09:44 +0000 E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?