aidalgol
I use Nix to manage my development environment, and after updating the pinned nixpkgs version in a working project, without changing the pinned version of Elixir, ElixirLS started crashing on startup while compiling elixir_ls_utils. Is it likely something wrong with my setup, or is this a bug in ElixirLS?
ElixirLS output
Preferred shell is bash, relaunching
Looking for ASDF install
ASDF not found
Looking for mise executable
which: no mise in ([snip])
mise not found
Looking for rtx executable
which: no rtx in ([snip])
rtx not found
Looking for vfox executable
which: no vfox in ([snip])
vfox not found
Installing ElixirLS release v0.26.2
Running in /path/to/project
==> elixir_ls_utils
Compiling 10 files (.ex)
** (EXIT from #PID<0.95.0>) an exception was raised:
** (RuntimeError) found error while checking types for ElixirLS.Utils.Launch.start_mix/0:
** (FunctionClauseError) no function clause matching in anonymous fn/1 in Module.ParallelChecker.cache_chunk/3
The exception happened while checking this code:
def start_mix() do
case Version.match?(System.version(), "< 1.15.0-dev") do
x when :erlang.orelse(:erlang."=:="(x, false), :erlang."=:="(x, nil)) ->
nil
_ ->
Mix.Local.append_archives()
Mix.Local.append_paths()
end
Mix.start()
true = Mix.Hex.ensure_installed?(false)
case :erlang.function_exported(Hex, :start, 0) do
false -> nil
true -> Hex.start()
end
Mix.env(:dev)
Mix.target(:host)
for env <- ["MIX_ENV", "MIX_TARGET"] do
System.delete_env(env)
end
load_dot_config()
:ok
end
Please report this bug at: https://github.com/elixir-lang/elixir/issues
(elixir 1.17.3) lib/module/parallel_checker.ex:458: anonymous fn({{:elixir_version, 0}, %{sig: {:infer, [{[], %{bitmap: 1}}]}}}) in Module.ParallelChecker.cache_chunk/3
(elixir 1.17.3) lib/enum.ex:987: Enum."-each/2-lists^foreach/1-0-"/2
(elixir 1.17.3) lib/module/parallel_checker.ex:458: Module.ParallelChecker.cache_chunk/3
(elixir 1.17.3) lib/module/parallel_checker.ex:378: Module.ParallelChecker.cache_module/2
(elixir 1.17.3) lib/module/types/of.ex:323: Module.Types.Of.remote/6
(elixir 1.17.3) lib/enum.ex:2531: Enum."-reduce/3-lists^foldl/2-0-"/3
(elixir 1.17.3) lib/module/types/of.ex:304: Module.Types.Of.remote/8
(elixir 1.17.3) lib/module/types/expr.ex:333: Module.Types.Expr.of_expr/3```
Elixir version:
Erlang/OTP 27 [erts-15.2.1] [source] [64-bit] [smp:32:32] [ds:32:32:10] [async-threads:1] [jit:ns]
Elixir 1.17.3 (compiled with Erlang/OTP 27)
Trending in Questions
Hello!
Suppose you are building workflow (order / task / payment) processing system with the following requirements:
Each workflow con...
New
I’m aware of 2 such projects, are there others?
git: GitHub - team-alembic/realworld: A fullstack Phoenix LiveView application with back...
New
Hi all,
I’m working on a Phoenix project where I need to make external HTTP requests and I’m trying to choose between Req and HTTPoison....
New
Hi everyone.
My team and I have been working on a fairly modest app based around video streaming and chat, but we’ve landed a customer t...
New
Hi,
we run different LLM models across a cluster, with each node loading a configurable subset. Model-specific queues let nodes consume ...
New
Hi all, I’m new here and would like to hear peoples views on my Elixir/Phoenix based game-engine! :smiley:
Mutonex gamedesign was finish...
New
Do we have maintainer of absinthe-graphql/dataloader here? We have a PR that we’d like to merge to the library. Relatively small additive...
New
Other Trending Topics
Hey there,
I haven’t seen a list of useful Elixir specific skills for the popular AI tools yet so I’m starting one here with my first.
...
New
I fully migrated to my own harness from Anthropic/Gemini and I think it’s time to share it. Welcome DSH, the DeepSeek Harness, fully writ...
New
Hey. Is there anyone here who creates agents in their apps? Not talking about using agents, but creating them. I’m finding it pretty diff...
New
Beam Bots (or just BB for short) is a framework for building fault-tolerant robotics applications in Elixir using familiar OTP patterns. ...
New
With AI doing more of the implementation work, I’ve been wondering how much coding I should deliberately keep doing myself.
My main conc...
New
(I just needed to vent somewhere and LinkedIn is full of hope, or hype, I’m not sure which exactly)
AI dream has many faces, but general...
New
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #library
- #deployment
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #elixirconf
- #channels
- #exunit
- #discussion
- #code-sync
- #podcasts
- #javascript
- #onsite
- #dialyzer
- #docker
- #authentication
- #ai
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #blog-post
- #ecto-query
- #elixirconf-us
- #elixir-ls
- #phoenix_html
- #iex
- #graphql
- #genstage
- #websockets
- #supervisor
- #advent-of-code
- #distillery
- #processes
- #elixirconf-eu
- #api
- #forms
- #security
- #hex










Most Liked- Show Best Posts
- Show All (oldest first)
- Show All (newest first)
lud
Hello!
Not sure what is the problem here, but indeed it seems to be a version problem.
Can you try to
rm -rf .elixir_lsat the root of your project and restart your editor?Last Post!
aidalgol
I had already removed that as well as
_buildanddeps, to be sure no leftover artefacts were causing issues.