Goto Definition & Autocompletion not working

[facundokantox]

Environment

• Elixir & Erlang versions (elixir --version):

Erlang/OTP 22 [erts-10.6] [source] [64-bit] [smp:6:6] [ds:6:6:10] [async-threads:1] [hipe]

Elixir 1.10.0 (compiled with Erlang/OTP 21)

• Operating system: macOS Catalina
• Editor or IDE name (e.g. Emacs/VSCode): VSCode
• LSP Client name:
• If using VSCode, are you using "ElixirLS Fork: Elixir support and debugger" (note that it has "Fork" in the name)? Yes

Crash report template

These occur when pressing F12 (Goto definition) or when holding Command key + mouse click

[Info  - 5:55:42 PM] Returning location struct
[Info  - 5:55:42 PM] Returning location struct
[Info  - 5:55:45 PM] Returning location struct
[Info  - 5:55:45 PM] Returning location struct

These when calling/triggering auto-complete, but not right after: 'Loading...' appears and this is displayed after I click enter (even though nothing was displayed.)

[Error - 5:55:57 PM] Request textDocument/documentSymbol failed.
  Message: an exception was raised:
    ** (SyntaxError) nofile:20: syntax error before: ','
        (language_server 0.3.1) lib/language_server/providers/document_symbols.ex:35: ElixirLS.LanguageServer.Providers.DocumentSymbols.list_symbols/1
        (language_server 0.3.1) lib/language_server/providers/document_symbols.ex:20: ElixirLS.LanguageServer.Providers.DocumentSymbols.symbols/3
        (language_server 0.3.1) lib/language_server/server.ex:485: anonymous fn/3 in ElixirLS.LanguageServer.Server.handle_request_async/2
  Code: -32000 

17:55:57.357 [error] Process #PID<0.350.0> raised an exception
** (SyntaxError) nofile:20: syntax error before: ','
    (language_server 0.3.1) lib/language_server/providers/document_symbols.ex:35: ElixirLS.LanguageServer.Providers.DocumentSymbols.list_symbols/1
    (language_server 0.3.1) lib/language_server/providers/document_symbols.ex:20: ElixirLS.LanguageServer.Providers.DocumentSymbols.symbols/3
    (language_server 0.3.1) lib/language_server/server.ex:485: anonymous fn/3 in ElixirLS.LanguageServer.Server.handle_request_async/2

'Loading...' sign also appears on mouse over but nothing happens.

Developer tools

[Extension Host] ok:localhost:/tmp/elixir-sense-1584724345293026000.sock
[Extension Host] [vscode-elixir] ElixirSense client connected on localhost:/tmp/elixir-sense-1584724345293026000.sock
[Extension Host] [vscode-elixir] ElixirSense client connection closed
[Extension Host] [ElixirSense] 18:12:25.306 [error] Task ElixirSense.Server.TCPServer started from #PID<0.200.0> terminating** (stop) exited in: GenServer.call(ElixirSense.Server.TCPServer.ConnectionHandlerSupervisor, {:start_task, [{:nonode@nohost, #PID<0.200.0>, #PID<0.200.0>}, [#PID<0.200.0>, #PID<0.199.0>], {:erlang, :apply, [#Function<1.131136907/0 in ElixirSense.Server.TCPServer.start_connection_handler/2>, []]}], nil, nil}, :infinity)    
        ** (EXIT) no process: the process is not alive or there's no process currently associated with the given name, possibly because its application isn't started    
        (elixir 1.10.0) lib/gen_server.ex:1013: GenServer.call/3    /Users/facundodiaz/.vscode/extensions/mjmcloug.vscode-elixir-1.1.0/elixir_sense/lib/elixir_sense/server/tcp_server.ex:58: ElixirSense.Server.TCPServer.accept/2   
        (elixir 1.10.0) lib/task/supervised.ex:90: Task.Supervised.invoke_mfa/2    
        (stdlib 3.11) proc_lib.erl:249: :proc_lib.init_p_do_apply/3
Function: &ElixirSense.Server.TCPServer.listen/3    
        Args: ["unix", "localhost", "0"]
ok:localhost:/tmp/elixir-sense-1584724345307545000.sock

I can provide more info if needed. Thanks!!

[axelson]

It looks like you have vscode-elixir installed as well. I believe that the two extensions are not compatible with each other. Can you try removing vscode-elixir? Also are there any syntax errors in the file that you are operating on?

[facundokantox]

It works after removing vscode-elixir. Didn't imagine that.
Thanks for your time, I will close the issue :)

[lukaszsamson]

@axelson It seems that vscode-elixir is causing a lot of issues. Maybe we should print a warning if we detect it.

[axelson]

Yeah that's a good idea. Filed it at elixir-lsp/vscode-elixir-ls#56