Ubuntu make error

[SherloqueChang]

I'm trying make to install cgum. However, I ran into an error which was:
File "./common.ml", line 2344, characters 16-38: Error: Unbound value String.lowercase_ascii Makefile:199: recipe for target 'common.cmo' failed

My ocaml version is 4.02.3 and Ubuntu is 5.4.0. Thanks!

[jrfaller]

Hi!

I think this is due to a too old ocaml version.

In our CI it works with the ocaml version from Ubuntu focal (https://github.com/GumTreeDiff/gumtree/blob/main/docker/Dockerfile) maybe you can try with this?

[SherloqueChang]

Does this mean that I need to upgrade my Ubuntu version?

[jrfaller]

Ocaml version of focal seems to be 4.08.1-8, maybe there is a way to install this on your version of Ubuntu?

[SherloqueChang]

Ok, I'll give it a try. Thanks!