问题
I am trying to use unison from my OS X machine to a linux box running: CentOS release 6.10 (Final)
I had to make a static compilation of unison 2.51 for the linux box. This version is:
unison version 2.51.2 (ocaml 4.02.3)
On the OS X machine I used "brew install unison". This gives me:
unison version 2.51.2 (ocaml 4.08.1)
If I try to now use unison I get:
Fatal error during unmarshaling (input_value: ill-formed message), possibly because client and server have been compiled with differentversions of the OCaml compiler.
What can I do to get unison to work?
回答1:
You will have to compile ocaml and unison from source on your linux box.
Ocaml: You can find ocaml 4.08 on https://caml.inria.fr/pub/distrib/. The instructions for compiling are in the readme.
Unison: From https://github.com/bcpierce00/unison/commits/master, you will see that the commit acfa105 is a verified commit compatible with Ocaml 4.08.1. Download this commit and run make.
I ran into the exact same issue and was able to resolve it using the above steps.
回答2:
I was running docker with a few containers and using docker-sync to keep things in sync with my local files on my Mac when i hit this issue.
My mac had the following installed:
unison -version
unison version 2.51.2 (ocaml 4.06.1)
My web-sync docker container used:
unison -version
unison version 2.51.2 (ocaml 4.08.1)
The solution that worked for me was:
brew uninstall unison && brew install unison
来源：https://stackoverflow.com/questions/58661715/how-to-use-unison-across-os-x-and-linux-fatal-error-due-to-ocaml-version