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

[leeahoward]

Issue Type: Bug

TypeScript Version: 4.1.4

Steps to reproduce crash

1. Error message displays when starting VSCode.
   *This just started happening today. I haven't made any changes to my configuration that I am aware of. I will update if I learn more.

TS Server Log
/Users/leehoward/Library/Application Support/Code/logs/20210209T162546/exthost2/vscode.typescript-language-features/tsserver-log-9qtBeb/tsserver.log
The log file may contain personal data, including full paths and source code from your workspace. You can scrub the log file to remove paths or other personal information.

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 20.3.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-7820HQ CPU @ 2.90GHz (8 x 2900)
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)	16, 6, 4
Memory (System)	16.00GB (1.04GB free)
Process Argv	--crash-reporter-id 84bdf4b4-b854-41f4-8f5e-756749af4094
Screen Reader	no
VM	0%

Extensions (41)

Extension	Author (truncated)	Version
vscode-sqlite	ale	0.11.1
ng-template	Ang	11.1.3
vscode-apollo	apo	1.18.0
vscode-twig-pack	baj	1.1.0
markdown-mermaid	bie	1.9.1
gitup	Bra	0.1.0
yaml-symbols	Cro	0.1.1
vscode-eslint	dba	2.1.14
vscode-html2pug	dba	4.0.0
xml	Dot	2.5.1
gitlens	eam	11.2.1
vscode-npm-script	eg2	0.3.15
react-native-react-redux	EQu	2.0.6
prettier-vscode	esb	5.9.1
filter-line	eve	2.0.1
git-project-manager	fel	1.7.1
vscode-graphiql-explorer	Gab	1.3.0
todo-tree	Gru	0.0.196
jenkinsfile-support	ivo	1.1.0
yuml	Jai	3.5.1
recent-files	jun	1.1.10
vscode-cfml	Kam	0.5.3
vscode-phpfmt	kok	1.0.30
pug2html	kru	0.0.2
vscode-docker	ms-	1.9.1
mssql	ms-	1.10.1
python	ms-	2021.1.502429796
jupyter	ms-	2020.12.414227025
remote-ssh	ms-	0.63.0
remote-ssh-edit	ms-	0.63.0
debugger-for-chrome	msj	4.12.12
vscode-ts-uml	myx	1.0.4
vscode-intellij-recent-files	per	1.0.0
explorer-exclude-vscode-extension	Red	1.2.0
vscode-workspace-switcher	sad	1.15.3
preview-vscode	sea	2.2.5
vscode-docker-ws	tii	0.5.0
email-viewer	Tom	5.0.0
vim	vsc	1.18.9
vscode-preview-server	yui	1.3.0
vscode-open-in-github	ziy	1.3.6

A/B Experiments

vsliv368:30146709
vsreu685:30147344
python383:30185418
vspor879:30202332
vspor708:30202333
vspor363:30204092
vswsl492:30211401
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pythonvsdeb440:30248342
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pythonvspyt875:30251590

[meganrogge]

Duplicate of #116229