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

[sckohen]

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 (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:39472:30)
    at ConfiguredProject.Project.enablePlugin (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:151962:24)
    at ConfiguredProject.enablePluginsWithOptions (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:152477:30)
    at ProjectService.loadConfiguredProject (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:154206:25)
    at ProjectService.createAndLoadConfiguredProject (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:154145:22)
    at ProjectService.createLoadAndUpdateConfiguredProject (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:154150:36)
    at ProjectService.assignProjectToOpenedScriptInfo (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:155055:44)
    at c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:155395:97
    at Object.flatMap (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:513:25)
    at ProjectService.applyChangesInOpenFiles (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:155395:41)
    at Session.handlers.ts.Map.ts.getEntries._a.<computed> (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:156413:46)
    at c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:158286:88
    at IOSession.Session.executeWithRequestId (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:158277:28)
    at IOSession.Session.executeCommand (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:158286:33)
    at IOSession.Session.onMessage (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:158310:35)
    at Interface.<anonymous> (c:\Users\Pikolata\AppData\Local\Programs\Microsoft VS Code\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, 2021-02-08T23:29:42.785Z)
OS version: Windows_NT x64 10.0.18363

System Info

Item	Value
CPUs	AMD Ryzen 7 3700X 8-Core Processor (16 x 3900)
GPU Status	2d_canvas: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on protected_video_decode: unavailable_off rasterization: enabled skia_renderer: enabled_on video_decode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	31.91GB (23.29GB free)
Process Argv	--crash-reporter-id 963b2316-1c4a-4409-a22d-0c4ab88d5edb
Screen Reader	no
VM	0%

Extensions (15)

Extension	Author (truncated)	Version
bracket-pair-colorizer-2	Coe	0.2.0
vscode-eslint	dba	2.1.14
docs-markdown	doc	0.2.82
gitlens	eam	11.2.1
prettier-vscode	esb	5.9.2
lintlens	ghm	3.0.0
svgeditor	hen	2.9.0
svg	joc	1.4.5
vscode-inline-svg	kon	0.9.4
gitignore	mic	1.0.1
python	ms-	2021.1.502429796
jupyter	ms-	2020.12.414227025
vscodeintellicode	Vis	1.2.11
vscode-icons	vsc	11.1.0
markdown-all-in-one	yzh	3.4.0

A/B Experiments

vsliv368cf:30146710
vsreu685:30147344
python383cf:30185419
pythonvspyt617cf:30253240
vspor879:30202332
vspor708:30202333
vspor363:30204092
vswsl492:30211401
pythonvsdeb440:30248342
pythonvsded773:30248341
pythonvspyt875:30251590

[IllusionMH]

/duplicate of #116219
Fix should go out with VS Code 1.53.2