TS Server fatal error: Debug Failure. False expression.

[Kolayeswanth]

Type: Bug

❗️❗️❗️ Please fill in the sections below to help us diagnose the issue ❗️❗️❗️

TypeScript Version: 5.5.4

Steps to reproduce crash

1. 2. 3.

TS Server Log

❗️ Server logging disabled. To help us fix crashes like this, please enable logging by setting:

"typescript.tsserver.log": "verbose"

After enabling this setting, future crash reports will include the server log.

VS Code version: Code 1.93.0 (4849ca9bdf9666755eb463db297b69e5385090e3, 2024-09-04T13:02:38.431Z) OS version: Windows_NT x64 10.0.22631 Modes:

System Info

|Item|Value| |---|---| |CPUs|12th Gen Intel(R) Core(TM) i5-12450H (12 x 2496)| |GPU Status|2d_canvas: enabled
canvas_oop_rasterization: enabled_on
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
skia_graphite: disabled_off
video_decode: enabled
video_encode: enabled
vulkan: disabled_off
webgl: enabled
webgl2: enabled
webgpu: enabled
webnn: disabled_off| |Load (avg)|undefined| |Memory (System)|15.68GB (6.63GB free)| |Process Argv|--crash-reporter-id 7a4ddb8d-40cc-42c5-a152-bd010934aa03| |Screen Reader|no| |VM|0%|

Extensions (32)

Extension|Author (truncated)|Version ---|---|--- flutter-snippets|ale|3.0.0 atlascode|atl|3.0.10 vscode-intelephense-client|bme|1.12.5 vscode-tailwindcss|bra|0.12.10 simple-react-snippets|bur|1.2.8 dart-code|Dar|3.96.0 flutter|Dar|3.96.0 composer-php-vscode|DEV|1.50.15906 intelli-php-vscode|DEV|0.12.15062 phptools-vscode|DEV|1.50.15906 prettier-vscode|esb|11.0.0 codespaces|Git|1.17.2 copilot|Git|1.229.0 copilot-chat|Git|0.20.0 php-namespace-resolver|Meh|1.1.9 vscode-docker|ms-|1.29.2 debugpy|ms-|2024.10.0 python|ms-|2024.14.0 vscode-pylance|ms-|2024.8.2 jupyter|ms-|2024.8.0 jupyter-keymap|ms-|1.1.2 jupyter-renderers|ms-|1.0.19 vscode-jupyter-cell-tags|ms-|0.1.9 vscode-jupyter-slideshow|ms-|0.1.6 remote-containers|ms-|0.384.0 remote-wsl|ms-|0.88.2 material-icon-theme|PKi|5.10.0 vscode-yaml|red|1.15.0 LiveServer|rit|5.7.9 es7-react-js-snippets|rod|1.9.3 QuickShare|Swa|0.0.3 vscode-gradle|vsc|3.16.4

A/B Experiments

``` vsliv368:30146709 vspor879:30202332 vspor708:30202333 vspor363:30204092 vscod805:30301674 binariesv615:30325510 vsaa593:30376534 py29gd2263:31024239 vscaac:30438847 c4g48928:30535728 azure-dev_surveyone:30548225 2i9eh265:30646982 962ge761:30959799 pythongtdpath:30769146 welcomedialogc:30910334 pythonnoceb:30805159 asynctok:30898717 pythonmypyd1:30879173 h48ei257:31000450 pythontbext0:30879054 accentitlementsc:30995553 dsvsc016:30899300 dsvsc017:30899301 dsvsc018:30899302 cppperfnew:31000557 dsvsc020:30976470 pythonait:31006305 dsvsc021:30996838 da93g388:31013173 a69g1124:31058053 dvdeprecation:31068756 dwnewjupyter:31046869 newcmakeconfigv2:31071590 impr_priority:31102340 refactort:31108082 pythonrstrctxt:31112756 flightc:31119335 wkspc-onlycs-t:31132770 wkspc-ranged-c:31125598 pme_test_t:31118333 ei213698:31121563 ```

[mjbvz]

Does this reproduce in the latest VS Code insiders build with all extensions disabled?

If you still see the issue, please try to share some code that demonstrates the issue so we can take a look. Thanks

[vs-code-engineering[bot]]

This issue has been closed automatically because it needs more information and has not had recent activity. See also our issue reporting guidelines.

Happy Coding!