how to fix vscode extension elixirls alert "OTP compiled without EEP48 documentation chunks"?

Question

This is the alert I am getting and I don't know how to fix it...

I created new bug for it on their github (providing a bit more details in there), but I am not sure if it is bug, or I am doing sth wrong.

Answer 1

As nobody posted the answer from that Github issue yet, here it is (when using asdf):

Setting the environment variable KERL_BUILD_DOCS=yes when installing Erlang should fix it.

Example: KERL_BUILD_DOCS=yes asdf install erlang 25.1.2

Answer 2

I have an Erlang 25.3 / Elixir 1.14.4-otp-25 global installation on Ubuntu 22, which I installed with asdf. Here's a list of all asdf commands.

This is what I did:

1. In VSCode, uninstall ElixirLS extension

2. Close VSCode

3. In terminal, you can check erlang versions installed with: asdf list erlang

4. In terminal, remove erlang with: asdf uninstall erlang 25.3

5. In terminal, check erlang is removed with: asdf list erlang

6. In terminal, reinstall erlang with: KERL_BUILD_DOCS=yes asdf install erlang 25.3

7. In terminal, set erlang as global with: asdf global erlang 25.3

8. In terminal, you can check erlang versions installed with: asdf list erlang

9. Open VSCode in an elixir project.

10. In VSCode, install the ElixirLS extension.

Hope it helps!