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

[georgii-nansen]

Issue Type: Bug

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

TypeScript Version: 4.5.4

TS Server Log
❗️ Please review and upload this log file to help us diagnose this crash:
/Users/george-nansen/Library/Application Support/Code/logs/20211217T110027/exthost1/vscode.typescript-language-features/tsserver-log-60BY9c/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 'flags' of undefined
    at getPropertyOfObjectType (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:57011:22)
    at getPropertyOfType (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:57671:24)
    at resolveESModuleSymbol (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:49817:54)
    at getTargetOfNamespaceImport (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:49002:28)
    at getTargetOfAliasDeclaration (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:49236:28)
    at resolveAlias (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:49281:30)
    at getSymbol (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:47838:38)
    at resolveNameHelper (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:48131:34)
    at resolveName (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:48114:20)
    at resolveEntityName (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:49453:42)
    at getTargetOfExportSpecifier (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:49193:17)
    at getTargetOfAliasDeclaration (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:49243:28)
    at resolveAlias (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:49281:30)
    at resolveSymbol (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:49271:67)
    at mergeSymbol (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:47624:42)
    at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:47739:47
    at Map.forEach (<anonymous>)
    at mergeSymbolTable (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:47737:20)
    at mergeSymbol (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:47648:21)
    at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:47739:47
    at Map.forEach (<anonymous>)
    at mergeSymbolTable (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:47737:20)
    at initializeTypeChecker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:85010:21)
    at Object.createTypeChecker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:47395:9)
    at Object.getTypeChecker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:114404:79)
    at synchronizeHostData (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:159898:21)
    at Object.getProgram (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:160019:13)
    at ConfiguredProject.Project.updateGraphWorker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:165033:53)
    at ConfiguredProject.Project.updateGraph (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:164962:42)
    at ConfiguredProject.updateGraph (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:165955:63)
    at ProjectService.createLoadAndUpdateConfiguredProject (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:167679:25)
    at ProjectService.assignProjectToOpenedScriptInfo (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:168762:44)
    at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:169102:97
    at Object.flatMap (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:522:25)
    at ProjectService.applyChangesInOpenFiles (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:169102:41)
    at Session.handlers.ts.Map.ts.getEntries._a.<computed> (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:170260:46)
    at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:172193:88
    at IOSession.Session.executeWithRequestId (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:172184:28)
    at IOSession.Session.executeCommand (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:172193:33)
    at IOSession.Session.onMessage (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:172219:35)
    at Interface.<anonymous> (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:174824:31)
    at Interface.emit (events.js:315:20)
    at Interface._onLine (readline.js:337:10)
    at Interface._normalWrite (readline.js:482:12)
    at Socket.ondata (readline.js:194:10)
    at Socket.emit (events.js:315:20)
    at addChunk (internal/streams/readable.js:309:12)
    at readableAddChunk (internal/streams/readable.js:284:9)
    at Socket.Readable.push (internal/streams/readable.js:223:10)
    at Pipe.onStreamRead (internal/stream_base_commons.js:188:23)

VS Code version: Code 1.63.2 (899d46d82c4c95423fb7e10e68eba52050e30ba3, 2021-12-15T09:37:28.172Z)
OS version: Darwin x64 20.6.0
Restricted Mode: No

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-7360U CPU @ 2.30GHz (4 x 2300)
GPU Status	2d_canvas: enabled gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on rasterization: enabled skia_renderer: disabled_off_ok video_decode: enabled webgl: enabled webgl2: enabled
Load (avg)	10, 11, 8
Memory (System)	8.00GB (0.03GB free)
Process Argv	--crash-reporter-id bd779320-9ecd-4a7e-9045-696f4a015a89
Screen Reader	no
VM	0%

Extensions (24)

Extension	Author (truncated)	Version
vscode-sql-formatter	adp	1.4.4
better-toml	bun	0.3.2
systemd-unit-file	coo	1.0.6
vue-peek	dar	1.0.2
vscode-eslint	dba	2.2.2
gitlens	eam	11.7.0
prettier-vscode	esb	9.0.0
vue	jcb	0.1.5
svg	joc	1.4.14
intellij-idea-keybindings	k--	1.5.0
vscode-scss	mrm	0.10.0
python	ms-	2021.12.1559732655
vscode-pylance	ms-	2021.12.2
jupyter	ms-	2021.11.1001550889
jupyter-keymap	ms-	1.0.0
jupyter-renderers	ms-	1.0.4
vetur	oct	0.35.0
trailing-spaces	sha	0.3.1
autoimport	ste	1.5.4
sass-indented	syl	1.8.18
vscodeintellicode	Vis	1.2.15
vscode-todo-highlight	way	1.0.5
wg-getters-and-setters	Wil	2.0.0
html-css-class-completion	Zig	1.20.0

(1 theme extensions excluded)

A/B Experiments

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vsreu685:30147344
python383:30185418
vspor879:30202332
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vspor363:30204092
pythontb:30283811
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binariesv615:30325510
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pythonvs932:30410667
vscop804:30404766
vs360:30404995
vsrem710cf:30405999
vscexrecpromp3t2:30407763

[georgii-nansen]

The same problem since 1.63.0. I know you guys are working hard on fixing this since the time the bug appeared, much appreciate your efforts

[gjsjohnmurray]

/assign @mjbvz

@mjbvz since this is with TS 4.5.4 and VS Code 1.63.2 is there something users need to do to resolve it?

[IllusionMH]

I think options can be:

• downgrade TS version(install lower version somewhere and point VS Code there withtypescript.tsdk).
• try build from Check for undefined globalObjectType in getPropertyOfObjectType #47183 with method above (Check for undefined globalObjectType in getPropertyOfObjectType #47183 (comment))

[mjbvz]

@georgii-nansen Can you please share a project that triggers this crash?

[otto-liljalaakso-nt]

@georgii-nansen Can you please share a project that triggers this crash?

Does this help?

#47038 (comment)

[sandersn]

Should be fixed by #47348

[georgii-nansen]

@georgii-nansen Can you please share a project that triggers this crash?

@mjbvz unfortunately, i can't share the project, it is proprietary. I can try sharing package.json if it helps