Current check for tooling manager errors without much information

[badosu]

• Asdf version: 0.18.0-arch (rev 028097)
• Expert version: Nightly on e9d69dd

I had both asdf and mise installed, but I only had mise activated. Expert fails to parse an asdf error output.

Here's the rundown:

1. Expert prioritizes asdf as first manager to check
2. The check involves checking the manager binary and finding elixir in the toolings env
3. I get the following output from asdf (the command to inspect the current manager environment):

asdf env elixir && echo Good || echo Bad     
Bad

4. This match fails without fallback for returning nil, blocking the check from proceeding to try other managers.

Suggestions

• Check whether asdf returned a success exit code before attempting to parse the output.
• Even when exit code is successful, if any match fails when parsing the output, invalidate the manager instead of crashing out (or be lenient about it providing warning messages).
• If anything is out of the ordinary when checking tooling managers, provide warnings.

An additional related case

Mise fetching deps from .tool-versions instead of mise.config.toml (no asdf installed), described in more detail here #128 (comment).

In this case mise env elixir && echo good || echo bad outputs below. Same error when matching output lines as the one described in the issue and suggestions should address it the same way.

export PATH='/Users/REDACTED_USERNAME/.local/share/mise/installs/erlang/28.0.2/bin:/Users/REDACTED_USERNAME/.local/share/mise/installs/elixir/1.18.4-otp-28/bin:/Users/REDACTED_USERNAME/.local/share/mise/installs/elixir/1.18.4-otp-28/.mix/escripts:/Users/REDACTED_USERNAME/.local/share/mise/installs/node/24.1.0/bin:/opt/homebrew/bin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Library/TeX/texbin:/opt/homebrew/bin:/Users/REDACTED_USERNAME/.orbstack/bin:/Users/REDACTED_USERNAME/.orbstack/bin'
good

[heywhy]

Did you build locally? If yes, can you try #93? I believe it should fix your issue.

[badosu]

Did you build locally? If yes, can you try #93? I believe it should fix your issue.

I didn't, but I can try it out.

[badosu]

So, I built the expert binary locally at 8a1d9d9. First thing I noticed is that using expert as cmd didn't work, it asked for an argument. So I tried expert start. Just a note that on the nightly release for e9d69dd I didn't need to specify an argument for expert.

A note on this section of interest on a run I did:

708   │ 14:29:45.023 [error] ** System NOT running to use fully qualified hostnames **
 709   │ ** Hostname 127.0.0.1 is illegal **

Edit: It seems this is an issue with my local configuration as building locally for dca68d8 also gives me the same error.

[badosu]

Honestly, I don't know what's going on. I'm having a lot of problems running even the current nightly (I got it working now, but things are very weird, I supposed a lot of inconsistent cache states). I even tried replacing all references from 127.0.0.1 to some fqdn (localhost or my machine name), but it didn't work. So I'll say I can't test it right now

[EricAndresen]

Switching from .tool-version to mise.toml fixed this for me.

Details:

• Zed Editor (consistent across multiple versions)
  • expert configured via settings.json
• Macbook Air M4
• Mise version 2025.9.10 macos-arm64 (2025-09-13)
• asdf has never been installed

Output of mise env elixir && echo good || echo bad when using .tool-versions and expert is failing with Erlang error: {:erpc, :noconnection}

export PATH='/Users/REDACTED_USERNAME/.local/share/mise/installs/erlang/28.0.2/bin:/Users/REDACTED_USERNAME/.local/share/mise/installs/elixir/1.18.4-otp-28/bin:/Users/REDACTED_USERNAME/.local/share/mise/installs/elixir/1.18.4-otp-28/.mix/escripts:/Users/REDACTED_USERNAME/.local/share/mise/installs/node/24.1.0/bin:/opt/homebrew/bin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Library/TeX/texbin:/opt/homebrew/bin:/Users/REDACTED_USERNAME/.orbstack/bin:/Users/REDACTED_USERNAME/.orbstack/bin' good