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

[papinto]

Issue Type: Bug

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

TypeScript Version: 4.2.2

Steps to reproduce crash

1. have a project open
2. upgrade to latest VS Code version
3. 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.

TS Server Error Stack
Server: semantic

TypeError: Cannot read property 'lastIndexOf' of undefined
    at Object.startsWith (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:2024:20)
    at isNodeModulesOrScopedPackageDirectory (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:19068:65)
    at guessDirectorySymlink (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:19056:17)
    at Object.discoverProbableSymlinks (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:19044:22)
    at ConfiguredProject.Project.getSymlinkCache (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:153426:61)
    at Object.getSymlinkCache (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:108820:29)
    at Object.host.compilerHost.realpath (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:108879:36)
    at realPath (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:39626:42)
    at Object.resolveTypeReferenceDirective (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:39075:74)
    at c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:154782:112
    at Object.map (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:451:29)
    at Function.AutoImportProviderProject.getRootFileNames (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:154782:42)
    at Function.AutoImportProviderProject.create (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:154811:38)
    at ConfiguredProject.Project.getPackageJsonAutoImportProvider (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:154625:77)
    at ConfiguredProject.Project.updateGraph (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:154023:26)
    at ConfiguredProject.updateGraph (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:154958:63)
    at ProjectService.createLoadAndUpdateConfiguredProject (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:156708:25)
    at ProjectService.assignProjectToOpenedScriptInfo (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:157649:44)
    at c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:157989:97
    at Object.flatMap (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:515:25)
    at ProjectService.applyChangesInOpenFiles (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:157989:41)
    at Session.handlers.ts.Map.ts.getEntries._a.<computed> (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:159044:46)
    at c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:160928:88
    at IOSession.Session.executeWithRequestId (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:160919:28)
    at IOSession.Session.executeCommand (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:160928:33)
    at IOSession.Session.onMessage (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:160954:35)
    at Interface.<anonymous> (c:\Program Files\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js:163615:31)
    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 1.54.1 (f30a9b7, 2021-03-04T22:38:31.419Z)
OS version: Windows_NT x64 10.0.18363

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz (8 x 1992)
GPU Status	2d_canvas: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on protected_video_decode: enabled rasterization: enabled skia_renderer: enabled_on video_decode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	15.83GB (6.50GB free)
Process Argv	--crash-reporter-id 15f3d642-14df-47ea-9c79-5eed9982f2c6
Screen Reader	no
VM	0%

Extensions (25)

Extension	Author (truncated)	Version
ng-template	Ang	11.2.5
vscode-markdownlint	Dav	0.39.0
jshint	dba	0.11.0
vscode-eslint	dba	2.1.14
gitlens	eam	11.3.0
vscode-npm-script	eg2	0.3.16
vscode-firefox-debug	fir	2.9.2
dotnet-test-explorer	for	0.7.5
beautify	Hoo	1.5.0
vscode-nuget-package-manager	jmr	1.1.6
dotenv	mik	1.0.1
mongodb-vscode	mon	0.4.2
vscode-docker	ms-	1.10.0
csharp	ms-	1.23.9
remote-containers	ms-	0.163.0
remote-wsl	ms-	0.54.0
powershell	ms-	2021.2.2
vscode-typescript-tslint-plugin	ms-	1.3.3
vsliveshare	ms-	1.0.3912
debugger-for-chrome	msj	4.12.12
heroku-command	pko	0.0.8
code-spell-checker	str	1.10.2
unity-debug	Uni	3.0.2
vscode-icons	vsc	11.1.0
easy-redis	You	1.0.12

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[IllusionMH]

Duplicate of microsoft/TypeScript#43105