Note that I solved the incompatibility issue with Windows & Mac OS by installing the former Debian version on the Ubuntu 20.04 LTS server: ``` wget http://ftp.fr.debian.org/debian/pool/main/u/unison/unison_2.48.4-1+b1_amd64.deb sudo dpkg -i unison_2.48.4-1+b1_amd64.deb ```
Running that breaked the compatibility with Unison from the Ubuntu 20.04 LTS client. To solve that, I ran the previous command on the Ubuntu client as well, plus this one: ``` wget http://ftp.fr.debian.org/debian/pool/main/u/unison/unison-gtk_2.48.4-1+b1_amd64.deb sudo dpkg -i unison-gtk_2.48.4-1+b1_amd64.deb ``` -- You received this bug notification because you are a member of Debian OCaml Maintainers, which is subscribed to unison in Ubuntu. 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 Status in unison package in Ubuntu: New Bug description: 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unison/+bug/1875475/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ocaml-maint Post to : [email protected] Unsubscribe : https://launchpad.net/~ocaml-maint More help : https://help.launchpad.net/ListHelp

