TypeScript doesn't work in last update

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Autocomplete and type checking are not working in .tsx files in Cursor, even though it works in .html files. TypeScript is installed locally (v5.9.3) and tsserver runs correctly via npx tsserver. Autocomplete doesn’t works in plain .ts files or React .tsx files, no suggestions, type hints, or error highlighting appear.

Steps to Reproduce

  1. Open Cursor.

  2. Open a project with a tsconfig.json and React .tsx files.

  3. Open any .tsx file (e.g., App.tsx).

  4. Try typing JSX elements or using component props.

Expected Behavior

  1. Autocomplete suggestions for JSX elements, props, and imported components.

  2. Type checking errors visible inline.

Screenshots / Screen Recordings

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.0.34
VSCode Version: 1.99.3
Commit: 45fd70f3fe72037444ba35c9e51ce86a1977ac10

Does this stop you from using Cursor

Yes - Cursor is unusable

4 Likes

I’m also having this issue

1 Like

I had a similar issue and it turned out upgrading to Cursor 2.0 switched off my builtin typescript feature.

If you go to Extensions and type “@builtin typescript”, is the TypeScript and JavaScript Language Features enabled?

2 Likes

I’ve reinstalled Cursor’s different versions, in the version 1.2 it has shown me following error. However it worked before, I’ve disabled a couple of extensions then it works on version 1.2. Have a plan to try upgrade version and have a look was it resolved.

Installed v2, typescript extension is enabled but getting error and it doesn’t work

I got almost exactly this error but it seemed to have fixed itself (after rebooting cursor and updating to the latest version), I’m on 2.0.38 , are you still on 2.0.34?

Yes, I was on 2.0.34, then I’ll try 2.0.38

Hey, thanks for the report. This is a confirmed critical bug affecting Mac Intel (x64) on Cursor 2.0.34.

Solution: update to version 2.0.38, some users reported this fixes the regression.

It appears specific to Intel Macs and causes all language servers (TypeScript, Python, etc.) to crash with SIGTRAP errors.

1 Like