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

[Kashkovsky]

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 20.2.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz (12 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)	8, 3, 2
Memory (System)	32.00GB (10.03GB free)
Process Argv	--crash-reporter-id 607b58b4-3ce9-48fa-8397-6c80053a05a9
Screen Reader	no
VM	0%

Extensions (49)

Extension	Author (truncated)	Version
terraform	4op	0.2.1
nugetpackagemanagergui	ali	1.1.6
atlascode	atl	2.8.5
vscode-bazel	Baz	0.4.0
jsdoc-markdown-highlighting	bie	0.0.1
bracket-pair-colorizer-2	Coe	0.2.0
vscode-eslint	dba	2.1.14
vscode-notes	dio	1.1.0
gitlens	eam	11.2.1
vscode-npm-script	eg2	0.3.15
prettier-vscode	esb	5.9.1
nasc-touchbar	fel	1.12.0
vscode-jest-runner	fir	0.4.31
auto-using	Fud	0.7.15
gitlab-workflow	Git	3.12.0
denali-vscode	Gra	0.0.5
vscode-sugarss-fmt	Gra	1.0.0
vscode-stylint	Haa	0.1.3
vscode-drawio	hed	1.2.0
plantuml	jeb	2.14.3
svg	joc	1.4.5
vscode-commitizen	Kni	0.10.2
vscode-js-annotations	lan	0.11.0
dotnet	leo	1.3.0
postcss-language	mhm	2.1.0
import-sorter	mik	3.3.1
vscode-docker	ms-	1.9.1
csharp	ms-	1.23.9
vscode-edge-devtools	ms-	1.1.3
python	ms-	2021.1.502429796
jupyter	ms-	2020.12.414227025
remote-containers	ms-	0.158.0
vscode-typescript-tslint-plugin	ms-	1.3.3
debugger-for-chrome	msj	4.12.12
debugger-for-edge	msj	1.0.15
hide-gitignored	npx	1.1.0
vscode-nuget-gallery	pat	0.0.24
jsdoc-live-preview	Per	2.0.0
vscode-versionlens	pfl	1.0.9
vscode-yaml	red	0.14.0
LiveServer	rit	5.6.1
synthwave-vscode	Rob	0.1.8
comment-ts	sal	1.0.20
markdown-preview-enhanced	shd	0.5.16
bazel-stack-vscode	Sta	0.6.7
msbuild-project-tools	tin	0.3.12
sort-lines	Tyr	1.9.0
vscodeintellicode	Vis	1.2.11
vscode-import-cost	wix	2.15.0

A/B Experiments

vsliv368:30146709
vsreu685:30147344
python383cf:30185419
pythonvspyt617cf:30253240
vspor879:30202332
vspor708:30202333
vspor363:30204092
vswsl492:30211401
pythonvsdeb440:30248342
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pythonvspyt600cf:30251589

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• TS Server fatal error: Cannot read property 'indexOf' of undefined (#116279)
• TS Server fatal error: Cannot read property 'indexOf' of undefined (#116246)
• TS Server fatal error: Cannot read property 'indexOf' of undefined (#116258)
• TS Server fatal error: Cannot read property 'indexOf' of undefined (#116225)
• TS Server fatal error: Cannot read property 'indexOf' of undefined (#116276)

[gjsjohnmurray]

/duplicate