🐛 LSP not started for svelte files, and not using LSP ignores biome config file

[ar4hc]

IDE and version

Build #IU-243.26053.27, built on March 16, 2025

Extension version

1.7.2

Biome version

1.9.4

Operating system

• Windows
• macOS
• Linux

Description

(Redo from #172 but with repo.)

I used (or used to) the plugin with svelte files,
I have kind of a mono repo, the JS is in a subdir of the repo root, and the biome config is in that subdir.
Also Intellij has various modules with different repos for dependency projects.

I tried autoconfig, manual config each with and without LSP.
The formatter seems to be the intellij inbuilt as nothing is in the IDEA logs.

Reinstall, of the plugin, didn't help.

And just took a look at the running lsp in the status bar:
it says biome isn't running for neither .js nor .svelte nor .json files but for other files.
I do not have an file open where biome is mentioned as "running on current file" ???
But i cant upload a screenshot here.

Will try downgrade and report back. Not sure when was the latest update...

Steps to reproduce

1. clone repo from here
2. Trigger reformat in svelte file, either save or on keypress
3. watch format change
4. It's not the expected format an no trace of biome in the log

Expected behavior

Biome should run format and/or lint on save and keypress, with the nearest(?) config.

Does this issue occur when using the CLI directly?

No

Link to a minimal reproduction

https://github.com/ar4hc/biome-repro-1744897732662

[thanhnguyen2187]

Hi. Is there any update on this? I'm facing the same issue with #WS-251.25410.117

[thanhnguyen2187]

Notes for posterity: try fiddling with Biome's settings first

• (Ctrl + Alt + S to open Settings)
• (Search and open Biome's section)
• Toggle "Automatic Biome configuration"
• Toggle "Enable LSP-based code formatting"

[donalmurtagh]

This issue sounds very similar to #180.

In summary, when an IntelliJ project has a single module with a Biome config file in the root directory, the Biome language service is activated for the relevant files. But for IntelliJ projects with a more complicated structure, activation of the Biome language service is unreliable.