Public bug reported:
Unison from Ubuntu 20.04 LTS (version unison=2.48.4-4ubuntu1) works well
with a client in exactly the same version, with exactly the same OS.
However, it does not work well with Unison 2.48.4-1ubuntu1 from Ubuntu
18.04, or with Unison on other OSes.
Once the client has determined the files that were updated, when I click on
'Go', the synchronisation fails with a message like this one:
> Fatal error:
> Uncaught exception Failure("input_value: ill-formed message")
Sometimes there is the mention "possibly because client and server have
been compiled with different versions of the Ocaml compiler."
I have seen this issues in the following configurations
- 2.48.4-4ubuntu1 on Ubuntu 20.04 LTS (client) and 2.48.4-1ubuntu1 on Ubuntu
18.04 LTS (server) => Fails
- 2.48.? on Mac OS X (client) and 2.48.4-4ubuntu1 on Ubuntu 20.04 LTS (server)
=> Fails
- 2.48.3 on Windows 7 (client) and 2.48.4-4ubuntu1 on Ubuntu 20.04 LTS (server)
=> Fails
Note that the Mac OS and Windows clients were working well with unison
2.48.4-1ubuntu1 (Ubuntu 18.04 LTS, server).
Maybe my problem could be solved by reverting unison to the version
2.48.4-1ubuntu1 from Ubuntu 18.04 LTS. Is is possible to do so with `apt
install` on Ubuntu 20.04? Thanks!
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: unison 2.48.4-4ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 27 19:18:59 2020
InstallationDate: Installed on 2020-04-16 (11 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
SourcePackage: unison
UpgradeStatus: Upgraded to focal on 2020-04-21 (6 days ago)
** Affects: unison (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1875475
Title:
Unison from Ubuntu 20.04 is incompatible with Unison from Ubuntu
18.04, Windows or Mac OS X
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