TS Server fatal error: Debug Failure.

[MerryCello]

Type: Bug

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

TypeScript Version: 5.6.2

Steps to reproduce crash
I didn't do anything difference as last time I opened VS Code and now it's crashing

1. Update to latest VS code (1.94.0)
2. Open VS code to a TS project
3. Make changes to some TS files

After regular usage, the TS server will just freeze up (infinite loading & no editing helpers).

According to issue Initellisense infinite loading microsoft/vscode#52691, I should be able to fix this by increasing TS server's memory, but I shouldn't have to do that...

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.

VS Code version: Code 1.94.0 (Universal) (d78a74bcdfad14d5d3b1b782f87255d802b57511, 2024-10-02T13:08:12.626Z)
OS version: Darwin arm64 23.6.0
Modes:

System Info

Item	Value
CPUs	Apple M1 Pro (10 x 2400)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	11, 13, 12
Memory (System)	32.00GB (0.24GB free)
Process Argv	--crash-reporter-id cb0287d2-a42d-4774-a99d-41e7456b17dd
Screen Reader	no
VM	0%

Extensions (14)

Extension	Author (truncated)	Version
better-comments	aar	3.0.2
vscode-sql-formatter	adp	1.4.4
githistory	don	0.6.20
gitlens	eam	15.6.0
prettier-vscode	esb	11.0.0
copilot	Git	1.238.0
copilot-chat	Git	0.21.1
inline-parameters	lia	0.2.1
live-server	ms-	0.4.15
vsliveshare	ms-	1.0.5941
sonarlint-vscode	Son	4.11.1
even-better-toml	tam	0.19.2
vscode-gradle	vsc	3.16.4
pretty-ts-errors	Yoa	0.6.0

A/B Experiments

vsliv368cf:30146710
vspor879:30202332
vspor708:30202333
vspor363:30204092
vscod805cf:30301675
binariesv615:30325510
vsaa593cf:30376535
py29gd2263:31024239
c4g48928:30535728
azure-dev_surveyone:30548225
962ge761:30959799
pythongtdpath:30769146
pythonnoceb:30805159
asynctok:30898717
pythonmypyd1:30879173
h48ei257:31000450
pythontbext0:30879054
accentitlementsc:30995553
cppperfnew:31000557
dsvsc020:30976470
pythonait:31006305
dsvsc021:30996838
da93g388:31013173
a69g1124:31058053
dvdeprecation:31068756
dwnewjupytercf:31046870
newcmakeconfigv2:31071590
impr_priority:31102340
nativerepl2:31139839
refactort:31108082
pythonrstrctxt:31112756
wkspc-onlycs-t:31132770
wkspc-ranged-t:31151552
cf971741:31144450
autoexpandse:31146404
iacca1:31156133
notype1:31157159
5fd0e150:31155592
icondisabled:31158250

[vs-code-engineering]

Thanks for creating this issue! It looks like you may be using an old version of VS Code, the latest stable release is 1.94.2. Please try upgrading to the latest version and checking whether this issue remains.

Happy Coding!

[MerryCello]

Hi, I just updated to the version mentioned and I am still facing this issue. To get Typescript to work again, I am forced to close VS Code and reopen it. Restarting the TS server does nothing.

Version: 1.94.2 (Universal)
Commit: 384ff7382de624fb94dbaf6da11977bba1ecd427
Date: 2024-10-09T16:08:44.566Z
Electron: 30.5.1
ElectronBuildId: 10262041
Chromium: 124.0.6367.243
Node.js: 20.16.0
V8: 12.4.254.20-electron.0
OS: Darwin arm64 23.6.0

[mjbvz]

Please try collecting the TS Server log from the crashed instance:

1. Set "typescript.tsserver.log": "verbose"

2. Restart VS Code and reproduce the problem

3. Open the TypeScript section of the output panel

4. At the very top, find the first line that prints to path to the semantic error log file. It should look something like:

   [Info  - 19:54:59.247] <semantic> Log file: /Users/matb/Library/Application Support/Code - Insiders/logs/20200213T104930/exthost55/vscode.typescript-language-features/tsserver-log-ZT2zau/tsserver.log
   

   That file contains the typescript logs.

Look through that log file for the first error or stack trace you see. If you can share the log, I can also take a look to see if anything stands out

⚠️Warning: The TypeScript log may include information from your workspace, including file paths and source code. If you have any concerns about posting this publicly on Github, just let me know and we can arrange something else. On our side, we only use these logs to investigate issues like this

[MerryCello]

Here's the error logs I found. I hope this helps

Typescript Output

2024-10-16 08:59:54.143 [info] <semantic> Log file: /path/to/Application Support/Code/logs/20241015T155211/window1/exthost/vscode.typescript-language-features/tsserver-log-BbVVPO/tsserver.log
2024-10-16 08:59:54.143 [info] <semantic> Forking...
2024-10-16 08:59:54.143 [info] <semantic> Starting...
2024-10-16 09:04:50.790 [info] Killing TS Server
2024-10-16 09:04:50.899 [error] TSServer exited. Code: null. Signal: SIGTERM

tsserver.log

Err 7256  [08:59:54.035] Exception on executing command {
  "seq": 108,
  "type": "request",
  "command": "updateOpen",
  "arguments": {
    "changedFiles": [],
    "closedFiles": [
      "/path/to/project/root/__tests__/__mocks__/package.js"
    ],
    "openFiles": [
      {
        "file": "/path/to/project/root/packages/package-name/__tests__/utils.ts",
        "fileContent": "FILE CONTENT OMITTED",
        "projectRootPath": "/path/to/project/root",
        "scriptKindName": "TS"
      }
    ]
  }
}:

    Debug Failure.

    Error: Debug Failure.
        at stopWatchFailedLookupLocationOfResolution (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:130844:11)
        at resolveNamesWithLocalCache (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:130440:13)
        at Object.resolveModuleNameLiterals (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:130521:12)
        at InferredProject2.resolveModuleNameLiterals (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:183583:33)
        at resolveModuleNamesWorker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:125213:20)
        at resolveNamesReusingOldState (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:125355:14)
        at resolveModuleNamesReusingOldState (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:125311:12)
        at processImportedModules (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126826:118)
        at findSourceFileWorker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126601:7)
        at findSourceFile (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126452:20)
        at processImportedModules (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126852:11)
        at findSourceFileWorker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126601:7)
        at findSourceFile (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126452:20)
        at processImportedModules (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126852:11)
        at findSourceFileWorker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126601:7)
        at findSourceFile (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126452:20)
        at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126401:22
        at getSourceFileFromReferenceWorker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126372:26)
        at processSourceFile (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126399:5)
        at processRootFile (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:126191:5)
        at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:124902:41
        at forEach (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:2282:22)
        at createProgram (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:124902:5)
        at synchronizeHostDataWorker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:149871:15)
        at synchronizeHostData (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:149767:7)
        at Object.getProgram (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:149948:5)
        at InferredProject2.updateGraphWorker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:184301:41)
        at InferredProject2.updateGraph (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:184137:32)
        at _ProjectService.assignOrphanScriptInfoToInferredProject (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:186805:13)
        at _ProjectService.assignProjectToOpenedScriptInfo (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:188397:12)
        at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:188786:25
        at Array.forEach (<anonymous>)
        at _ProjectService.applyChangesInOpenFiles (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:188784:56)
        at updateOpen (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:189983:29)
        at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:192651:15
        at IpcIOSession.executeWithRequestId (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:192640:14)
        at IpcIOSession.executeCommand (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:192649:29)
        at IpcIOSession.onMessage (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:192697:68)
        at process.<anonymous> (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:525:14)
        at process.emit (node:events:519:28)
        at emit (node:internal/child_process:951:14)
        at process.processTicksAndRejections (node:internal/process/task_queues:83:21)

From another tsserver.log

Err 5120  [09:04:50.787] Exception on executing command {
  "seq": 8,
  "type": "request",
  "command": "updateOpen",
  "arguments": {
    "changedFiles": [],
    "closedFiles": [],
    "openFiles": [
      {
        "file": "/path/to/project/root/packages/package-name/src/components/component/index.tsx",
        "fileContent": "FILE CONTENT OMITTED",
        "projectRootPath": "/path/to/project/root",
        "scriptKindName": "TSX"
      }
    ]
  }
}:

    Debug Failure.

    Error: Debug Failure.
        at stopWatchFailedLookupLocationOfResolution (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:130844:11)
        at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:130890:25
        at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:43862:16
        at Map.forEach (<anonymous>)
        at Object.forEach (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:43860:25)
        at removeResolutionsOfFileFromCache (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:130889:19)
        at Object.removeResolutionsOfFile (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:130908:5)
        at _AutoImportProviderProject.detachScriptInfoFromProject (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:184439:30)
        at _AutoImportProviderProject.onReleaseOldSourceFile (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:184122:12)
        at Object.onReleaseOldSourceFile (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:149916:66)
        at createProgram (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:124974:14)
        at synchronizeHostDataWorker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:149871:15)
        at synchronizeHostData (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:149767:7)
        at Object.getProgram (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:149948:5)
        at _AutoImportProviderProject.updateGraphWorker (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:184301:41)
        at _AutoImportProviderProject.updateGraph (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:184137:32)
        at _AutoImportProviderProject.updateGraph (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:185276:37)
        at updateProjectIfDirty (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:185914:36)
        at Array.forEach (<anonymous>)
        at _ProjectService.assignProjectToOpenedScriptInfo (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:188386:29)
        at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:188786:25
        at Array.forEach (<anonymous>)
        at _ProjectService.applyChangesInOpenFiles (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:188784:56)
        at updateOpen (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:189983:29)
        at /Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:192651:15
        at IpcIOSession.executeWithRequestId (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:192640:14)
        at IpcIOSession.executeCommand (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:192649:29)
        at IpcIOSession.onMessage (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/typescript.js:192697:68)
        at process.<anonymous> (/Applications/Visual Studio Code.app/Contents/Resources/app/extensions/node_modules/typescript/lib/tsserver.js:525:14)
        at process.emit (node:events:519:28)
        at emit (node:internal/child_process:951:14)
        at process.processTicksAndRejections (node:internal/process/task_queues:83:21)

[andrewbranch]

@MerryCello can you share a full TS Server log (not just the error stack)? Are you able to reproduce this consistently with specific steps, or does it seem to stop working randomly?

[MerryCello]

Sure, I can provide that. I can't pinpoint what triggers it. It just happens randomly (every 30-1hr of usage).

…

On Thu, Oct 17, 2024, 15:01 Andrew Branch ***@***.***> wrote: @MerryCello <https://github.com/MerryCello> can you share a full TS Server log (not just the error stack)? Are you able to reproduce this consistently with specific steps, or does it seem to stop working randomly? — Reply to this email directly, view it on GitHub <#60243 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AIYCXDV2EIDHTCPXGBE7QLTZ4AJQVAVCNFSM6AAAAABQB32AM6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDIMRQGQYTMMRVGA> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[mbtools]

TypeScript.log

tsserver.zip

I was able to capture a full log (v1.94.2). This was with a fairly big open-source repo. Although it happened several times, I'm not able to reproduce it. If I find a way, I will post it here.

[pbomb]

I've also been struggling with these errors for the past couple weeks. I'm also not sure what triggers it but it typically happens to me about every 10 - 30 minutes.

[jerry2013]

This error is making vscode pretty un-usable now.

[jerry2013]

with the current vscode version: 1.95.3, I grabbed the resolution in stopWatchFailedLookupLocationOfResolution and it doesn't have resolution.files which triggers the throw.

maybe stopWatchFailedLookupLocationOfResolution ran twice?

in any case, I did if (!resolution.files) return and everything works fine. Why do we need Debug.checkDefined here? the next few lines would set it to undefined anyway.

{
  "resolvedModule": {
    "resolvedFileName": "/app/node_modules/moment/ts3.1-typings/moment.d.ts",
    "extension": ".d.ts",
    "isExternalLibraryImport": true,
    "packageId": {
      "name": "moment",
      "subModuleName": "ts3.1-typings/moment.d.ts",
      "version": "2.29.4"
    },
    "resolvedUsingTsExtension": false
  },
  "failedLookupLocations": [
    "/app/node_modules/moment-timezone/node_modules/moment/package.json",
    "/app/node_modules/moment-timezone/node_modules/moment.ts",
    "/app/node_modules/moment-timezone/node_modules/moment.tsx",
    "/app/node_modules/moment-timezone/node_modules/moment.d.ts",
    "/app/node_modules/moment-timezone/node_modules/moment/index.ts",
    "/app/node_modules/moment-timezone/node_modules/moment/index.tsx",
    "/app/node_modules/moment-timezone/node_modules/moment/index.d.ts",
    "/app/node_modules/moment-timezone/node_modules/@types/moment/package.json",
    "/app/node_modules/moment-timezone/node_modules/@types/moment.d.ts",
    "/app/node_modules/moment-timezone/node_modules/@types/moment/index.d.ts",
    "/app/node_modules/moment.ts",
    "/app/node_modules/moment.tsx",
    "/app/node_modules/moment.d.ts"
  ],
  "affectingLocations": [
    "/app/node_modules/moment-timezone/package.json",
    "/app/node_modules/moment/package.json",
    "/app/node_modules/moment-timezone/package.json"
  ]
}