TS Server fatal error: Cannot read property 'indexOf' of undefined

[serlv]

Issue Type: Bug

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

TypeScript Version: 4.1.4

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.

TS Server Error Stack
Server: semantic

TypeError: Cannot read property 'indexOf' of undefined
    at Object.parsePackageName (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:39472:30)
    at ConfiguredProject.Project.enablePlugin (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:151962:24)
    at ConfiguredProject.enablePluginsWithOptions (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:152477:30)
    at ProjectService.loadConfiguredProject (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:154206:25)
    at ProjectService.createAndLoadConfiguredProject (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:154145:22)
    at ProjectService.createLoadAndUpdateConfiguredProject (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:154150:36)
    at ProjectService.assignProjectToOpenedScriptInfo (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:155055:44)
    at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:155395:97
    at Object.flatMap (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:513:25)
    at ProjectService.applyChangesInOpenFiles (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:155395:41)
    at Session.handlers.ts.Map.ts.getEntries._a.<computed> (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:156413:46)
    at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:158286:88
    at IOSession.Session.executeWithRequestId (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:158277:28)
    at IOSession.Session.executeCommand (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:158286:33)
    at IOSession.Session.onMessage (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:158310:35)
    at Interface.<anonymous> (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:160520:27)
    at Interface.emit (events.js:315:20)
    at Interface._onLine (readline.js:329:10)
    at Interface._normalWrite (readline.js:474:12)
    at Socket.ondata (readline.js:186:10)
    at Socket.emit (events.js:315:20)
    at addChunk (_stream_readable.js:295:12)
    at readableAddChunk (_stream_readable.js:271:9)
    at Socket.Readable.push (_stream_readable.js:212:10)
    at Pipe.onStreamRead (internal/stream_base_commons.js:186:23)

VS Code version: Code 1.53.1 (5d424b8, 2021-02-08T23:35:15.302Z)
OS version: Darwin x64 20.1.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz (8 x 2600)
GPU Status	2d_canvas: enabled gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on protected_video_decode: unavailable_off rasterization: enabled skia_renderer: disabled_off_ok video_decode: enabled webgl: enabled webgl2: enabled
Load (avg)	14, 18, 14
Memory (System)	16.00GB (2.82GB free)
Process Argv	BD7 --crash-reporter-id f189a1a6-e78c-4d26-9d5f-d5151dbd64c6
Screen Reader	no
VM	0%

Extensions (42)

Extension	Author (truncated)	Version
bracket-pair-colorizer	Coe	1.0.61
vscode-svgviewer	css	2.0.0
vscode-markdownlint	Dav	0.38.0
vscode-eslint	dba	2.1.14
gitlens	eam	11.2.1
EditorConfig	Edi	0.16.4
vscode-npm-script	eg2	0.3.15
prettier-vscode	esb	5.9.1
todo-tree	Gru	0.0.196
vscode-drawio	hed	1.3.0
io-run	hoa	1.1.11
vscode-wordcount-cjk	hol	1.3.1
applescript	idl	0.19.1
latex-workshop	Jam	8.15.0
linecounter	lyz	0.2.7
vscode-less	mrm	0.6.3
python	ms-	2021.1.502429796
vscode-pylance	ms-	2021.2.0
jupyter	ms-	2020.12.414227025
remote-ssh	ms-	0.63.0
remote-ssh-edit	ms-	0.63.0
cmake-tools	ms-	1.5.3
cpptools	ms-	1.2.0
debugger-for-chrome	msj	4.12.12
vetur	oct	0.32.0
indent-rainbow	ode	7.5.0
material-icon-theme	PKi	4.5.0
quicktype	qui	12.0.46
java	red	0.74.0
LiveServer	rit	5.6.1
rainbow-fart	sae	1.4.0
shader	sle	1.1.5
vs-picgo	Spa	2.1.0
code-spell-checker	str	1.10.2
latex-support	tor	3.5.0
cmake	twx	0.0.17
vscodeintellicode	Vis	1.2.11
vscode-java-debug	vsc	0.31.0
vscode-java-pack	vsc	0.12.1
vscode-java-test	vsc	0.28.0
vscode-import-cost	wix	2.15.0
markdown-all-in-one	yzh	3.4.0

(1 theme extensions excluded)

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[gjsjohnmurray]

/duplicate