Package: libtidy-dev Version: 1:5.2.0-1 Severity: serious Dear Maintainer,
You must add a Breaks or Conflicts/Replaces for libtidy-0.99-0 20091223cvs-1.5 Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: libtidy-dev 0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded. Need to get 0 B/206 kB of archives. After this operation, 954 kB of additional disk space will be used. (Reading database ... 252471 files and directories currently installed.) Preparing to unpack .../libtidy-dev_1%3a5.2.0-1_i386.deb ... Unpacking libtidy-dev (1:5.2.0-1) ... dpkg: error processing archive /var/cache/apt/archives/libtidy-dev_1%3a5.2.0-1_i386.deb (--unpack): trying to overwrite '/usr/lib/libtidy.so', which is also in package libtidy-0.99-0 20091223cvs-1.5 Errors were encountered while processing: /var/cache/apt/archives/libtidy-dev_1%3a5.2.0-1_i386.deb Christian -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: i386 (i686) Kernel: Linux 4.1.26 (SMP w/8 CPU cores; PREEMPT) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system)