elixir-lsp/vscode-elixir-ls

Phoenix LiveView + Hot reload crashes the app

Closed this issue · 1 comments

macabeus commented

The hot reload crashes the app when I have debug on and I update a LiveView module.

It shows the following error when changing a dummy value on the module:

== Compilation error in file lib/loreware_web/live/game_live.ex ==
** (UndefinedFunctionError) function Phoenix.LiveView.__using__/1 is undefined or private. However, there is a macro with the same name and arity. Be sure to require Phoenix.LiveView if you intend to invoke this macro
    (phoenix_live_view 0.19.5) Phoenix.LiveView.__using__([])
    lib/loreware_web/live/game_live.ex:2: (module)
    (elixir 1.15.6) lib/kernel/parallel_compiler.ex:377: anonymous fn/5 in Kernel.ParallelCompiler.spawn_workers/8

How to reproduce it:
1 - git clone git@github.com:macabeus/loreware.git (it's mainly the phoenix initial app)
2 - cd loreware
3 - git checkout bug
4 - mix deps.get
5 - mix ecto.create
6 - on VS Code, run the action mix phx.server
7 - go to the page http://localhost:4000/game
8 - update the value on game_live.ex
9 - it crashes the app!

If you run mix phx.server from the terminal, it works as expected.
You can change game_live.ex and it refreshes correctly on the browser - bug the VS Code debuggers won't work, obviously... 😢

(I'm beginning in Elixir, so I can be doing a dummy mistake; I'm not sure if it's an issue here or on elixir-lsp/elixir-ls)

Environment

  • Elixir & Erlang versions (elixir --version): Erlang/OTP 26 [erts-14.0.2] [source] [64-bit] [smp:10:10] [ds:10:10:10] [async-threads:1] [jit] [dtrace]

Elixir 1.15.6 (compiled with Erlang/OTP 26)

  • VSCode ElixirLS version: 0.16.0
  • Operating System Version: darwin 23.0.0
lukaszsamson commented

That's a known issue. Phoenix live reload breaks debug session phoenixframework/phoenix_live_reload#133

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