Frequent Crashes Reported By Elixir LS

[apoorv-2204]

https://elixirforum.com/t/frequent-crashes-reported-by-elixir-ls/57038

Precheck

** There is frequent crashes of elixir ls ,on vscode **
Due to which cant use the features provided by elixir ls.

The standard debugging measures taken are:

• enable ,disable , install , uninstall , elixir ls extension
• restart vs code
• delete .elixir_ls, _build
• mix deps.get , mix dep.compile. mix deps.clean,etc

an exception was raised:
    ** (UndefinedFunctionError) function Proxy.Mixfile.project/0 is undefined (module Proxy.Mixfile is not available)
        Proxy.Mixfile.project()
        (mix 1.14.1) lib/mix/project.ex:838: Mix.Project.get_project_config/1
        (mix 1.14.1) lib/mix/project.ex:141: Mix.Project.push/3
        (mix 1.14.1) lib/mix/project.ex:785: Mix.Project.load_project/2
        (mix 1.14.1) lib/mix/project.ex:389: Mix.Project.in_project/4
        (elixir 1.14.1) lib/file.ex:1607: File.cd!/2
        (language_server 0.15.1) lib/language_server/build.ex:83: anonymous fn/3 in ElixirLS.LanguageServer.Build.reload_project/0
        (stdlib 4.2) maps.erl:411: :maps.fold_1/3

an exception was raised:
** (UndefinedFunctionError) function Tzdata.Mixfile.project/0 is undefined (module Tzdata.Mixfile is not available)
Tzdata.Mixfile.project()
(mix 1.14.1) lib/mix/project.ex:838: Mix.Project.get_project_config/1
(mix 1.14.1) lib/mix/project.ex:141: Mix.Project.push/3
(mix 1.14.1) lib/mix/project.ex:785: Mix.Project.load_project/2
(mix 1.14.1) lib/mix/project.ex:389: Mix.Project.in_project/4
(elixir 1.14.1) lib/file.ex:1607: File.cd!/2
(language_server 0.15.1) lib/language_server/build.ex:83: anonymous fn/3 in ElixirLS.LanguageServer.Build.reload_project/0
(stdlib 4.2) maps.erl:411: :maps.fold_1/3ElixirLS

Kernel.defmodule(alias, do_block) view on hexdocs

Defines a module given by name with the given contents.

This macro defines a module with the given alias as its name and with the given contents. It returns a tuple with four elements:

:module
the module name
the binary contents of the module
the result of evaluating the contents block

** (UndefinedFunctionError) function OpentelemetryLoggerMetadata.MixProject.project/0 is undefined (module OpentelemetryLoggerMetadata.MixProject is not available)
        OpentelemetryLoggerMetadata.MixProject.project()
        (mix 1.14.3) lib/mix/project.ex:838: Mix.Project.get_project_config/1
        (mix 1.14.3) lib/mix/project.ex:141: Mix.Project.push/3
        (mix 1.14.3) lib/mix/project.ex:785: Mix.Project.load_project/2
        (mix 1.14.3) lib/mix/project.ex:389: Mix.Project.in_project/4
        (elixir 1.14.3) lib/file.ex:1607: File.cd!/2
        (language_server 0.14.6) lib/language_server/build.ex:83: anonymous fn/3 in ElixirLS.LanguageServer.Build.reload_project/0
        (stdlib 4.2) maps.erl:411: :maps.fold_1/3

Environment

• Elixir & Erlang versions (elixir --version):
  elixir 1.14.1-otp-25
  erlang 25.2.2

• Elixir Language Server version:
  latest extension on vscode

• Operating system:
  22.04

• Editor or IDE name (e.g. Emacs/VSCode):
  VSCode

• Editor Plugin/LSP Client name and version:

Current behavior

Expected behavior

[lukaszsamson]

Please post a repro steps or a project that reproduces it

[lukaszsamson]

ping @apoorv-2204

[apoorv-2204]

Please post a repro steps or a project that reproduces it

If I find one I will do so! I can’t share the repo I am working on (its proprietary code)

[lukaszsamson]

A minimal repo and repro steps will do

[APB9785]

I've had this issue on every single repo I've ever used ElixirLS with.

Even a brand new project with mix phx.new will reproduce this issue consistently.

[lukaszsamson]

I've had this issue on every single repo I've ever used ElixirLS with.

@APB9785 I can't help without repro steps. I'm not experiencing it on any of the repos I work with. Please post a minimal repo

[lukaszsamson]

Even a brand new project with mix phx.new will reproduce this issue consistently.

@APB9785 works for me, no crashes

Fill out the bug template. Provide versions and detailed repro steps. Otherwise feel free to clone the repo and create a PR with a failing test

[apoorv-2204]

[lukaszsamson]

@apoorv-2204 That's not a bug. Please install OTP with doc chunks or build from source with correct flags if you want full documentation support for erlang stdlib.

[apoorv-2204]

    ** (File.Error) could not set current working directory to "/home/apoorv-2204/Documents/aenode/deps/inet_cidr": no such file or directory
        (elixir 1.14.1) lib/file.ex:1580: File.cd!/1
        (elixir 1.14.1) lib/file.ex:1604: File.cd!/2
        (language_server 0.15.1) lib/language_server/build.ex:83: anonymous fn/3 in ElixirLS.LanguageServer.Build.reload_project/0
        (stdlib 4.1.1) maps.erl:411: :maps.fold_1/3
        (language_server 0.15.1) lib/language_server/build.ex:81: ElixirLS.LanguageServer.Build.reload_project/0
        (language_server 0.15.1) lib/language_server/build.ex:20: anonymous fn/3 in ElixirLS.LanguageServer.Build.build/3
        (stdlib 4.1.1) timer.erl:235: :timer.tc/1
        (language_server 0.15.1) lib/language_server/build.ex:14: anonymous fn/3 in ElixirLS.LanguageServer.Build.build/3```

[lukaszsamson]

@apoorv-2204 Did you delete deps directory while ElixirLS is building?

This is not getting anywhere. Either post a concrete repro steps or I'm closing that

[apoorv-2204]

Yes I did several times

[lukaszsamson]

A crash is expected in that situation

[lukaszsamson]

We can add a try/rescue in that call but don't expect software to work if you delete files it's trying to read. If you delete deps during mix compile it will crash as well.