TS Server fatal error: Cannot read properties of undefined (reading 'charCount')

[ferdaws545]

Type: Bug

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

TypeScript Version: 5.6.3

Steps to reproduce crash

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 1.94.2 (384ff73, 2024-10-09T16:08:44.566Z)
OS version: Windows_NT x64 10.0.22631
Modes:
Remote OS version: Linux x64 5.15.167.4-microsoft-standard-WSL2

System Info

Item	Value
CPUs	11th Gen Intel(R) Core(TM) i5-11400H @ 2.70GHz (12 x 2688)
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)	31.73GB (17.47GB free)
Process Argv	--crash-reporter-id b4bdd3f1-41ef-4d71-a567-e6bbaadee3cf
Screen Reader	no
VM	0%

Item	Value
Remote	WSL: Ubuntu-24.04
OS	Linux x64 5.15.167.4-microsoft-standard-WSL2
CPUs	11th Gen Intel(R) Core(TM) i5-11400H @ 2.70GHz (12 x 0)
Memory (System)	15.49GB (13.15GB free)
VM	0%

Extensions (56)

Extension	Author (truncated)	Version
better-comments	aar	3.0.2
vsc-material-theme	Equ	34.7.9
vsc-material-theme-icons	equ	3.8.10
jupyter-keymap	ms-	1.1.2
remote-containers	ms-	0.388.0
remote-ssh	ms-	0.115.1
remote-ssh-edit	ms-	0.87.0
remote-wsl	ms-	0.88.5
remote-explorer	ms-	0.4.3
material-icon-theme	PKi	5.14.1
qsharp-lang-vscode	qua	1.11.0
errorlens	use	3.20.0
better-comments	aar	3.0.2
ng-template	Ang	19.0.2
jsoncrack-vscode	Ayk	2.0.3
vscode-tailwindcss	bra	0.12.14
turbo-console-log	Cha	2.10.5
doxdocgen	csc	1.4.0
dart-code	Dar	3.100.0
flutter	Dar	3.100.0
vscode-eslint	dba	3.0.10
githistory	don	0.6.20
gitlens	eam	16.0.2
EditorConfig	Edi	0.16.4
vsc-material-theme	Equ	34.7.9
vsc-material-theme-icons	equ	3.8.10
prettier-vscode	esb	11.0.0
copilot	Git	1.245.0
copilot-chat	Git	0.21.2
vscode-github-actions	git	0.27.0
gluestack-vscode	glu	0.1.22
android-adb-wlan	Han	0.0.10
rest-client	hum	0.25.1
i18n-ally	lok	2.12.0
language-matlab	Mat	1.2.7
rainbow-csv	mec	3.12.0
vscode-docker	ms-	1.29.3
debugpy	ms-	2024.12.0
python	ms-	2024.20.0
vscode-pylance	ms-	2024.11.2
vscode-react-native	msj	1.13.0
vscode-jest	Ort	6.4.0
vscode-twoslash	Ort	1.0.2
bun-vscode	ove	0.0.16
material-icon-theme	PKi	5.14.1
prisma	Pri	5.22.0
vscode-thunder-client	ran	2.30.0
vscode-yaml	red	1.15.0
LiveServer	rit	5.7.9
autoimport	ste	1.5.4
code-spell-checker	str	4.0.21
vscode-pets	ton	1.27.0
errorlens	use	3.20.0
explorer	vit	1.8.0
vscode-gradle	vsc	3.16.4
vscode-import-cost	wix	3.3.0

A/B Experiments

vsliv368:30146709
vspor879:30202332
vspor708:30202333
vspor363:30204092
vscod805cf:30301675
binariesv615:30325510
vsaa593cf:30376535
py29gd2263:31024239
c4g48928:30535728
azure-dev_surveyone:30548225
2i9eh265:30646982
962ge761:30959799
pythonnoceb:30805159
asynctok:30898717
pythonmypyd1:30879173
2e7ec940:31000449
pythontbext0:30879054
cppperfnew:31000557
dsvsc020:30976470
pythonait:31006305
dsvsc021:30996838
jg8ic977:31013176
dvdeprecation:31068756
dwnewjupyter:31046869
newcmakeconfigv2:31071590
nativerepl2:31139839
pythonrstrctxt:31112756
cf971741:31144450
iacca1:31171482
notype1cf:31157160
5fd0e150:31155592
dwcopilot:31170013
stablechunks:31184530

[vs-code-engineering]

Thanks for creating this issue! It looks like you may be using an old version of VS Code, the latest stable release is 1.95.3. Please try upgrading to the latest version and checking whether this issue remains.

Happy Coding!