TypeScript features no longer work

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

I can suddenly no longer work on my Typescript Project.
For example if I write code referencing an external variable that is not yet imported, no error is displayed.
I tried :

  • different modifications on my tsconfig.json file followed by
  • Ctrl+Shift+P =>“Developer : Reload Window” and then Ctrl+Shift+P => “TypeScript: Go to Project Configuration (tsconfig)” always results in message “File is not part of a Typescript project”
  • remove tsconfig.json from .gitignore as it seemed to be ignored by Cursor

NB: Same project works perfectly in VS Code.

Steps to Reproduce

  1. Open a .ts or .tsx file
  2. Write some code referencing an external element not yet imported
  3. No error is displayed, imports used to be automatically generated on save bu ■■■’s not the case anymore

Expected Behavior

Previously, compilation errors were displayed, imports were automatically generated, …
ESLint errors are displayd though

Operating System

Linux

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.0.75
VSCode Version: 1.99.3
Commit: 9e7a27b76730ca7fe4aecaeafc58bac1e2c82120
Date: 2025-11-12T17:34:21.472Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Linux x64 6.8.0-87-generic

Does this stop you from using Cursor

No - Cursor works, but with this issue

2

Hey, thanks for the report. It looks like a TypeScript language server issue. Let’s gather some diagnostic info:

Please share:

  • TypeScript Output logs: View > Output > select “TypeScript” in the dropdown > copy all text
  • Developer Console errors: Help > Toggle Developer Tools > Console tab > look for red errors
  • Built-in extension status: Extensions > search “@builtin typescript” > verify “TypeScript and JavaScript Language Features” is enabled

Quick tests to try:

  • Test without extensions: run cursor --disable-extensions from the terminal, open your project, and test TypeScript
  • Reload the TS server: CTRL+Shift+P > “TypeScript: Restart TS Server”

Since the same project works in VS Code, this points to a Cursor-specific config or an extension conflict. The diagnostic logs will help pinpoint what’s happening with the language server.

Let me know what you find!

3

Hi and thanks for your reply,

Please find below the information you asked for.

TypeScript Output

2025-11-14 13:19:21.342 [info] Starting TS Server
2025-11-14 13:19:21.343 [info] Using tsserver from: /home/sthibaudeau/.cursor/extensions/ms-vscode.vscode-typescript-next-5.9.20250603/node_modules/typescript/lib/tsserver.js
2025-11-14 13:19:21.343 [info] <syntax> Forking...
2025-11-14 13:19:21.343 [info] <syntax> Starting...

Developer Console logs

Here are the red errors I see in the console (most recent ones first)

errors
errors1062×403 83.3 KB

Built-in TypeScript and JavaScript extension is enabled

extension-enabled
extension-enabled787×260 32.2 KB

Thanks for your help ! 2 days without Cursor and I realize how much I miss it.

4

I tried both (actually that was part of the tests I’ve done before reporting a bug) and unfortunately it does not solve anything.

1 Like
5

Thanks for sharing the console errors. The main issue is the message “Timed out getting tasks from typescript” which means the TypeScript server is hanging during initialization.

I can also see that you have the TypeScript Nightly extension (vscode-typescript-next) installed. This can conflict with the built-in TypeScript support. Please try the following:

  • Uninstall TypeScript Nightly: Extensions → search for “TypeScript Nightly” → uninstall ms-vscode.vscode-typescript-next
  • Fully restart Cursor
  • Check that the built-in TS is active after removing the Nightly extension: Extensions → @builtin typescript → make sure “TypeScript and JavaScript Language Features” is enabled

If that doesn’t help, please also try:

  • Test with a clean profile: run cursor --disable-extensions --user-data-dir=/tmp/cursor-test and open your project there
  • Check project size: very large projects or a complex tsconfig can cause timeouts. Try increasing the limit: Settings → search for “typescript.tsserver.maxTsServerMemory” and set it to 8192
  • Check if you have any workspace-specific TypeScript settings: .vscode/settings.json or .cursor/settings.json

Let me know if removing the Nightly extension resolves the issue.

6

Hello,

I have tested your suggestions.

Test with a clean profile: run cursor --disable-extensions --user-data-dir=/tmp/cursor-test and open your project there

With this one, I have now the compilation errors.
I will try to rebuild my whole environment from this starting point and by integrating back my previous settings one by one to see how it goes.

Thanks for the help !

Stéphane

1 Like
7

This topic was automatically closed 22 days after the last reply. New replies are no longer allowed.