ELixir LS error: (UndefinedFunctionError) function SSLVerifyFun.Mixfile.project/0 is undefined (module SSLVerifyFun.Mixfile is not available)

Questions / Help
,
1

an exception was raised:

    ** (UndefinedFunctionError) function SSLVerifyFun.Mixfile.project/0 is undefined (module SSLVerifyFun.Mixfile is not available)
        SSLVerifyFun.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 0.14.6) 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
2

Have you tried the standard diagnostic steps (remove _build, remove .elixir_ls, restart all the things) yet?

If you try those and this keeps happening, you’ll need to provide more information about what’s triggering this behavior - what’s in your project’s mix.exs?

3

I’ve got an identical error trace with a different library at the end of it:

** (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

The thing is that OpentelemetryLoggerMetadata.MixProject.project/0 absolutely does exist. Both on github (linked) and also in my deps file.

I’ve recently deleted both _build and my .elixir_ls directories.

Edit: I should say that this is only a problem for the language server - my project builds fine and passes all tests. This is some internal language server process - apparently in the reload_project/0 function.