elixir-lsp
`Mix.install/2 can only be called with the same dependencies in the given VM` when debugging a plain `.exs` file
Hi elixir-ls devs,
When debugging an .exs file without a mix.exs I ran into the following issue:
Started ElixirLS Debug Adapter v0.27.2
ElixirLS Debug Adapter built with elixir "1.18.3" on OTP "27"
Running on elixir "1.18.3 (compiled with Erlang/OTP 27)" on OTP "27"
Protocols are not consolidated
[...]
Running with MIX_ENV: dev MIX_TARGET: host
Running mix run --no-mix-exs test.exs
Mix task failed
Mix task exited with reason
an exception was raised:
** (Mix.Error) Mix.install/2 can only be called with the same dependencies in the given VM
(mix 1.18.3) lib/mix.ex:618: Mix.raise/2
test.exs:1: (file)
(elixir 1.18.3) src/elixir_compiler.erl:77: :elixir_compiler.dispatch/4
(elixir 1.18.3) src/elixir_compiler.erl:52: :elixir_compiler.compile/4
(elixir 1.18.3) src/elixir_compiler.erl:39: :elixir_compiler.maybe_fast_compile/2
(elixir 1.18.3) src/elixir_lexical.erl:13: :elixir_lexical.run/3
(elixir 1.18.3) src/elixir_compiler.erl:17: :elixir_compiler.quoted/3
(elixir 1.18.3) lib/module/parallel_checker.ex:120: Module.ParallelChecker.verify/1
returning code 1
Mix task exited with reason
an exception was raised:
** (Mix.Error) Mix.install/2 can only be called with the same dependencies in the given VM
(mix 1.18.3) lib/mix.ex:618: Mix.raise/2
test.exs:1: (file)
(elixir 1.18.3) src/elixir_compiler.erl:77: :elixir_compiler.dispatch/4
(elixir 1.18.3) src/elixir_compiler.erl:52: :elixir_compiler.compile/4
(elixir 1.18.3) src/elixir_compiler.erl:39: :elixir_compiler.maybe_fast_compile/2
(elixir 1.18.3) src/elixir_lexical.erl:13: :elixir_lexical.run/3
(elixir 1.18.3) src/elixir_compiler.erl:17: :elixir_compiler.quoted/3
(elixir 1.18.3) lib/module/parallel_checker.ex:120: Module.ParallelChecker.verify/1
returning code 1
12:14:40.298 [error] Process #PID<0.233.0> raised an exception
** (Mix.Error) Mix.install/2 can only be called with the same dependencies in the given VM
(mix 1.18.3) lib/mix.ex:618: Mix.raise/2
test.exs:1: (file)
(elixir 1.18.3) src/elixir_compiler.erl:77: :elixir_compiler.dispatch/4
(elixir 1.18.3) src/elixir_compiler.erl:52: :elixir_compiler.compile/4
(elixir 1.18.3) src/elixir_compiler.erl:39: :elixir_compiler.maybe_fast_compile/2
(elixir 1.18.3) src/elixir_lexical.erl:13: :elixir_lexical.run/3
(elixir 1.18.3) src/elixir_compiler.erl:17: :elixir_compiler.quoted/3
(elixir 1.18.3) lib/module/parallel_checker.ex:120: Module.ParallelChecker.verify/1
Received disconnect request
It runs fine in bash with mix run --no-mix-exs test.exs. Making a basic application and calling a function directly with -e seems to work fine. Is there a way to debug an a plain .exs?
Project: compile_crash.zip
.vscode/launch.json:
{
"version": "0.2.0",
"configurations": [
{
"type": "mix_task",
"name": "compile_crash",
"request": "launch",
"task": "run",
"startApps": false,
"taskArgs": ["--no-mix-exs", "test.exs"],
"projectDir": "${workspaceRoot}",
"exitAfterTaskReturns": false,
"console": "internalConsole",
"outputCapture": "std",
}
]
}
test.exs:
Mix.install([{:req, "~> 0.5.10"}])
IO.puts "Hello world"
Calling Mix.install in exs scripts is currently not supported. ElixirLS uses Mix.install in its launch script. Maybe there is a way to reset mix state
Makes sense. Is it worth adding a line to the Known Issues/Limitations section? Happy to make a PR for it.
Related: https://github.com/elixir-lang/elixir/issues/12293