Package: tracker.debian.org Severity: normal Take a look at Vcs: field in: https://tracker.debian.org/pkg/aptitude
For Vcs-Git, the hyperlink yields: https://anonscm.debian.org/git/aptitude/aptitude.git%20-b%20debian-sid Which is definitely wrong and will leads to 404. Regards, Boyuan Yang -- System Information: Debian Release: buster/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'buildd-unstable'), (500, 'unstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.14.0-2-amd64 (SMP w/4 CPU cores) Locale: LANG=zh_CN.UTF-8, LC_CTYPE=zh_CN.UTF-8 (charmap=UTF-8), LANGUAGE= (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled