Material Icons V9 seems to break TS indexing in VS Code

[mliebold-jax]

Steps to reproduce

Steps:

1. Create a new Vite React app using the React Typescript template
2. I Installed MUI V9 and everything was fine: pnpm add @mui/material @emotion/styled @emotion/react
3. I then install Material Icons v9: pnpm add @mui/icons-material
4. Now if you reload the window, tsconfig.app.json will never finish initializing and it will show an alert saying The JS/TS language service crashed 5 times in the last 5 Minutes.
5. If you remove the MUI icons package the issue stops.

My VS Code is on the latest version as well as all my extensions. I also tried disabling all extensions as well.

Downgrading to React 18 and MUI 7 fixes the issue but would love to use the latest version if I can figure out what the issue is.

Current behavior

No response

Expected behavior

No response

Context

No response

Your environment

npx @mui/envinfo

  Don't forget to mention which browser you used.
  Output from `npx @mui/envinfo` goes here.

Search keywords: VS Code, TS Server, TS Indexing, MUI, Material UI Icons

[mj12albert]

I tried following these steps and the initializing step is very slow (almost 10 minutes) but it eventually did finish

[Janpot]

Can you try if the solution of microsoft/TypeScript#60854 improves things?

// ./.vscode/settings.json
"js/ts.preferences.includePackageJsonAutoImports": false

And if so, I guess we can open a new typescript ticket with your reproduction?

[mliebold-jax]

I tried following these steps and the initializing step is very slow (almost 10 minutes) but it eventually did finish

I left it running for about 25 minutes and it was still running.

[mliebold-jax]

Can you try if the solution of microsoft/TypeScript#60854 improves things?

// ./.vscode/settings.json
"js/ts.preferences.includePackageJsonAutoImports": false

And if so, I guess we can open a new typescript ticket with your reproduction?

That setting does stop the infinite initialization. I could create an issue there as well and see what they say. I created the issue here because it seem to only be the @mui/icons-material v9 package that causes this.

[Janpot]

We can keep both. I'm just suggesting since it seems they would be interested in a reproduction if anyone has one.

[mliebold-jax]

Gotcha, thanks for the suggestion. Will create an issue there 👍