Trouble starting up language server - elixir-ls

Questions / Help
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1

I have recently setup Erlang / Elixir on Ubuntu 20.04.

I installed Erlang/OTP 23 and Elixir 1.10.4 via the apt package manager. I am adding Elixir to Neovim using coc.nvim.

I have followed the instructions for building Elixir Language Server (ElixirLS) that is on their Github page. It compiles ok but when I go to run the server I get the following error:

{"jsonrpc":"2.0","method":"window/logMessage","params":{"message":"\u001B[22m\n15:46:08.023 [info]  Application hipe exited: :stopped\n\u001B[0m","type":4}}

Content-Length: 419

{"jsonrpc":"2.0","method":"window/logMessage","params":{"message":"** (MatchError) no match of right hand side value: {:error, {:wx, {'no such file or directory', 'wx.app'}}}\n    (language_server 0.5.0) lib/language_server/cli.ex:9: ElixirLS.LanguageServer.CLI.main/0\n    (stdlib 3.13) erl_eval.erl:680: :erl_eval.do_apply/6\n    (elixir 1.10.4) lib/code.ex:341: Code.eval_string_with_error_handling/3","type":2}}

It looks like it has something to do with wx, would that mean wxWidgets? I am unsure and unable to find anything on the web via searching that might help.

Any help would be appreciated!

Thanks

2

Hello and welcome…

If You look at asdf erlang, You might see some dependencies needed for Ubuntu 20.04 LTS.

apt-get -y install build-essential autoconf m4 libncurses5-dev 
libwxgtk3.0-gtk3-dev libgl1-mesa-dev libglu1-mesa-dev libpng-dev 
libssh-dev unixodbc-dev xsltproc fop libxml2-utils libncurses-dev 
openjdk-11-jdk

wx should be optional, but not for running observer.

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3

Thank you for pointing me at asdf. I have reinstalled Erlang and Elixir using that VM and it is up and running! I didn’t know about asdf so thanks also for introducing me to that.

Thanks

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