Not recognizing reason language about vscode-reasonml

[aeruhxi]

The problem turned out to be the environment (I opened vscode with dmenu) vscode was running on did not have them on PATH. Everything works fine when I opened vscode from the terminal. Thanks for taking your time.

I'm not sure what is causing that without more information about how your project is set up. Do you have merlin installed local to the project?

[aeruhxi]

I have following settings set up in user settings

"reason.path.ocamlmerlin": "/home/absolutezero/.opam/4.03.0/bin/ocamlmerlin",
"reason.path.refmt": "/home/absolutezero/.opam/4.03.0/bin/refmt",
"reason.path.rtop": "/home/absolutezero/.opam/4.03.0/bin/rtop",
"reason.formatOnSave": true

[aeruhxi]

How do I install merlin locally to the project?

[aeruhxi]

I cloned this project: https://github.com/reasonml/ReasonNativeProject
It already has .merlin.

I cloned this project: https://github.com/reasonml/ReasonNativeProject
It already has .merlin.

Can you try unsetting the user settings you mentioned above? As long as your PATH is set up correctly you shouldn't need to use them unless you have some custom versions or something. If you don't override them, the reason mode should use the ocamlmerlin binary that is installed when you set up the dependencies with npm or whatever.

[aeruhxi]

I get the following error when I unset those settings

/home/absolutezero/.vscode/extensions/freebroccolo.reasonml-0.0.99/node_modules/ocaml-language-server/out/src/server/processes/merlin.js:25
                throw error;
                ^

Error: spawn ocamlmerlin ENOENT
    at exports._errnoException (util.js:1026:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:359:16)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
[Error - 6:58:42 AM] Connection to server got closed. Server will not be restarted.

But ocamlmerlin should be in PATH as

$ which ocamlmerlin
/home/absolutezero/.opam/4.03.0/bin/ocamlmerlin

How do you have your shell environment setup? How did you install opam? For whatever reason, when node tries to spawn ocamlmerlin, the binary is not in the path.

[aeruhxi]

I installed opam with what opam's website instructs to do:

wget https://raw.github.com/ocaml/opam/master/shell/opam_installer.sh -O - | sh -s /usr/local/bin

And for reason, I installed it with opam install reason.

Maybe opam is not being initialized properly (and thus not setting the path) for new shells in some cases. Do you get the same output from the following commands?

sh -c ocamlmerlin
sh -cl ocamlmerlin

[aeruhxi]

Yes

Oops, those commands should have run ocamlmerlin instead of opam. Can you try that? It probably won't make a difference but still…

I think the opam installer script should have either modified one of your shell init scripts or asked you to modify it manually. Do you see that somewhere in like ~/.profile or ~/.bash_profile or maybe one of the zsh files if you use that?

The only thing I can really think of is that there's some sort of misconfiguration with how the shell is initializing the opam stuff but it's hard to pinpoint from a distance.

[aeruhxi]

sh -c ocamlmerlin runs off. But the other one:

$ sh -cl ocamlmerlin
sh: ocamlmerlin: command not found

Also in my .zshrc, the following line has been added.

. /home/absolutezero/.opam/opam-init/init.zsh > /dev/null 2> /dev/null || true

. /home/absolutezero/.opam/opam-init/init.zsh > /dev/null 2> /dev/null || true

It's a long shot but you could try moving this to ~/.zshenv instead and seeing if that helps. I think with ~/.zshrc opam may only be initializing the path for login shells which could explain why it's failing for node but not when you try it manually.

[aeruhxi]

Not working 🙁