Error starting up the dev server

[AlexanderVanDamme]

╭─alisk@khuinux in repo: football_matchmaking on  master [!?] via ⭐ v1.5.1 via  v23.1.0 took 0s ╰─λ gleam run -m lustre/dev start Compiled in 0.17s Running lustre/dev.main ✅ Project compiled successfully ✅ Esbuild already installed! ✅ Bundle produced at ./priv/static/football_matchmaking.mjs ✅ Tailwind already installed!

Next Steps:

1. Be sure to update your root index.html file to include <link rel='stylesheet' type='text/css' href='./priv/static/your_app.css' /> ✅ Bundle produced at ./priv/static/football_matchmaking.css

I ran into an error while trying to start the development server. Here's the error message I got:

AcceptorFailed(Abnormal("Child failed to start during initialisation: Abnormal(\"Failed to start socket listener: Eaddrinuse\")"))

Please open an issue at https://github.com/lustre-labs/dev-tools/issues/new with some details about what you were trying to do when you ran into this issue.

I did a gleam update after that but it still fails:

alisk@khuinux in repo: football_matchmaking on  master [!?] via ⭐ v1.5.1 via  v23.1.0 took 1s ╰─λ gleam update Resolving versions Downloading packages Downloaded 9 packages in 0.81s

╭─alisk@khuinux in repo: football_matchmaking on  master [!?] via ⭐ v1.5.1 via  v23.1.0 took 16s ╰─λ gleam run -m lustre/dev start Compiling gleam_stdlib Compiling ranger Compiling birl Compiling gleam_json Compiling stoiridh_version Compiling decipher Compiling decode Compiling envoy Compiling filepath Compiling simplifile Compiling directories Compiling exception Compiling gleam_community_colour Compiling gleam_community_ansi Compiling gleam_crypto Compiling gleam_erlang Compiling gleam_http Compiling gleam_javascript Compiling gleam_fetch Compiling gleam_httpc Compiling gleam_otp Compiling gleam_package_interface Compiling glearray Compiling gleeunit Compiling snag Compiling glint Compiling glisten warning: Incompatible gleam version range ┌─ /home/alisk/Brogramming/football_matchmaking/build/packages/glisten/src/glisten.gleam:92:1 │ 92 │ @internal │ ^^^^^^^^^ This requires a Gleam version >= 1.1.0

The @internal annotation was introduced in version v1.1.0. But the Gleam version range specified in your gleam.toml would allow this code to run on an earlier version like v1.0.0, resulting in compilation errors! Hint: Remove the version constraint from your gleam.toml or update it to be:

gleam = ">= 1.1.0"

warning: Deprecated value used ┌─ /home/alisk/Brogramming/football_matchmaking/build/packages/glisten/src/glisten.gleam:318:9 │ 318 │ list.concat([ssl_options, protocol_options]), │ ^^^^^^^ This value has been deprecated

It was deprecated with this message: Use list.flatten instead.

Compiling gramps Compiling lustre Compiling mist Compiling repeatedly Compiling spinner Compiling tom Compiling wisp Compiling lustre_dev_tools warning: Deprecated value used ┌─ /home/alisk/Brogramming/football_matchmaking/build/packages/lustre_dev_tools/src/lustre_dev_tools/cli.gleam:267:23 │ 267 │ let toml_path = list.concat([["lustre-dev"], namespace, [name]]) │ ^^^^^^^ This value has been deprecated

It was deprecated with this message: Use list.flatten instead.

Compiling lustre_http warning: Unused imported module ┌─ /home/alisk/Brogramming/football_matchmaking/build/packages/lustre_http/src/lustre_http.gleam:2:1 │ 2 │ import gleam/fetch │ ^^^^^^^^^^^^^^^^^^ This imported module is never used

Hint: You can safely remove it.

warning: Unused imported module ┌─ /home/alisk/Brogramming/football_matchmaking/build/packages/lustre_http/src/lustre_http.gleam:6:1 │ 6 │ import gleam/javascript/promise │ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ This imported module is never used

Hint: You can safely remove it.

warning: Unused variable ┌─ /home/alisk/Brogramming/football_matchmaking/build/packages/lustre_http/src/lustre_http.gleam:134:3 │ 134 │ req: Request(String), │ ^^^^^^^^^^^^^^^^^^^^ This variable is never used

Hint: You can ignore it with an underscore: _req.

warning: Unused variable ┌─ /home/alisk/Brogramming/football_matchmaking/build/packages/lustre_http/src/lustre_http.gleam:135:3 │ 135 │ expect: Expect(msg), │ ^^^^^^^^^^^^^^^^^^^ This variable is never used

Hint: You can ignore it with an underscore: _expect.

warning: Unused variable ┌─ /home/alisk/Brogramming/football_matchmaking/build/packages/lustre_http/src/lustre_http.gleam:136:3 │ 136 │ dispatch: fn(msg) -> Nil, │ ^^^^^^^^^^^^^^^^^^^^^^^^ This variable is never used

Hint: You can ignore it with an underscore: _dispatch.

Compiled in 14.02s Running lustre/dev.main ✅ Project compiled successfully ✅ Esbuild already installed! ✅ Bundle produced at ./priv/static/football_matchmaking.mjs ✅ Tailwind already installed!

Next Steps:

1. Be sure to update your root index.html file to include <link rel='stylesheet' type='text/css' href='./priv/static/your_app.css' /> ✅ Bundle produced at ./priv/static/football_matchmaking.css

I ran into an error while trying to start the development server. Here's the error message I got:

AcceptorFailed(Abnormal("Child failed to start during initialisation: Abnormal(\"Failed to start socket listener: Eaddrinuse\")"))

Please open an issue at https://github.com/lustre-labs/dev-tools/issues/new with some details about what you were trying to do when you ran into this issue.

[AlexanderVanDamme]

yesterday i could just startup this projects without problems

[AlexanderVanDamme]

restarting my pc fixed the problem

[hayleigh-dot-work]

If you run into this issue again, the error is you have some other program already using port 1234. So you can proceed if you either

• kill the program on this port
• pass the --port option to dev tools and choose something other than the default port.

@giacomocavalieri do you think we could intercept this error and show something friendlier?

[giacomocavalieri]

Yeah I think we could do something about it! I can try and catch the error providing a better message :)