I am a newer for using Ubuntu. I am using Ubuntu 18.04, and try to upgrade libwind0-heimdal to 7.5.0+dfsg-1ubuntu0.4 from 7.5.0+dfsg-1ubuntu0.3. The system displys 7.5.0+dfsg-1ubuntu0.3 is latest version of libwind0-heimdal after I execute apt update and apt install libwind0-heimdal. But the 7.5.0+dfsg-1ubuntu0.4 is released in fact. So why the latest version I can't build by using apt command?
Surely, I still can build latest version in aonther way such as manually install.
libwind0-heimdal | 7.5.0+dfsg-1ubuntu0.4 | bionic-updates | amd64, arm64, armhf, i386, ppc64el, s390x
so I'd suggest runningsudo apt update
to update your software lists & read that output for clues.. ie. are there any missing lines, what mirror are you using? or using the main archive? If using a mirror I'd check it's up-to-date, but we're limited to the detail you provided. I'd plan your release-upgrade rather soon though – guiverc Mar 16 '23 at 07:24sudo apt update
& reading output from that command... Look for warnings, errors OR just missing lines from that output; that's where I'd expect the problem to be shown; we can only help you if you provide that output; that's where I'd start. If I saw nothing wrong there, I'd likely move toapt-cache policy
... – guiverc Mar 16 '23 at 07:33sudo apt update
without errors or missing lines), then you can start to explore on specific packages, where I'd useapt-cache policy libwind0-heimdal
ie. down to package level where it'll show where your latest package is available & where your machine will get it from.. This output will provide detail you can explore such as you're using an outdated mirror, though that detail can also be obtained via priorsudo apt update
command & quick check online using https://launchpad.net/ubuntu/+archivemirrors etc – guiverc Mar 16 '23 at 07:47apt-cache policy
command in your output to examine, then your issue is the priorsudo apt update
step & missing output there... ie. check your sources, as if you're using one of the architectures I listed in the comment with package name (& repo, ie. then you have no valid source forbionic-updates
). If you have additional input; edit your question & add it there; this is a Q&A site and not a forum (comments are from readers to the Original Poster & will get removed once details/clarifications exist in question) – guiverc Mar 16 '23 at 08:55