TS Server fatal error: Debug Failure.

[ghost]

Issue Type: Bug

TypeScript Version: 3.8.3
Steps to reproduce crash
1.
2.
3.
TS Server Error Stack

Error: Debug Failure.
    at Object.assertDefined (tsserver.js:2077:24)
    at ProjectService.setDocument (tsserver.js:141203:37)
    at acquireOrUpdateDocument (tsserver.js:112203:35)
    at Object.acquireDocumentWithKey (tsserver.js:112174:20)
    at getOrCreateSourceFileByPath (tsserver.js:135301:41)
    at Object.getOrCreateSourceFile [as getSourceFile] (tsserver.js:135253:24)
    at findSourceFile (tsserver.js:99143:29)
    at tsserver.js:99020:85
    at getSourceFileFromReferenceWorker (tsserver.js:98987:34)
    at processSourceFile (tsserver.js:99020:13)
    at processRootFile (tsserver.js:98843:13)
    at tsserver.js:97809:60
    at Object.forEach (tsserver.js:167:30)
    at Object.createProgram (tsserver.js:97809:16)
    at synchronizeHostData (tsserver.js:135218:26)
    at Proxy.getProgram (tsserver.js:135310:13)
    at InferredProject.Project.updateGraphWorker (tsserver.js:139786:53)
    at InferredProject.Project.updateGraph (tsserver.js:139729:42)
    at ProjectService.assignOrphanScriptInfoToInferredProject (tsserver.js:141705:25)
    at ProjectService.assignProjectToOpenedScriptInfo (tsserver.js:143132:26)
    at tsserver.js:143396:107
    at Object.mapDefined (tsserver.js:562:30)
    at ProjectService.applyChangesInOpenFiles (tsserver.js:143396:48)
    at Session.handlers.ts.createMapFromTemplate._a.<computed> (tsserver.js:144260:46)
    at tsserver.js:146003:88
    at IOSession.Session.executeWithRequestId (tsserver.js:145994:28)
    at IOSession.Session.executeCommand (tsserver.js:146003:33)
    at IOSession.Session.onMessage (tsserver.js:146027:35)
    at Interface.<anonymous> (tsserver.js:147342:27)
    at Interface.emit (events.js:203:13)
    at Interface._onLine (readline.js:316:10)
    at Interface._normalWrite (readline.js:461:12)
    at Socket.ondata (readline.js:172:10)
    at Socket.emit (events.js:203:13)
    at addChunk (_stream_readable.js:295:12)
    at readableAddChunk (_stream_readable.js:276:11)
    at Socket.Readable.push (_stream_readable.js:210:10)
    at Pipe.onStreamRead (internal/stream_base_commons.js:166:17)

VS Code version: Code 1.43.2 (0ba0ca52957102ca3527cf479571617f0de6ed50, 2020-03-24T07:38:38.248Z)
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 flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: disabled_off protected_video_decode: enabled rasterization: enabled skia_renderer: disabled_off_ok video_decode: enabled viz_display_compositor: enabled_on viz_hit_test_surface_layer: disabled_off_ok webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	7.84GB (1.75GB free)
Process Argv
Screen Reader	no
VM	0%

Extensions (18)

Extension	Author (truncated)	Version
language-mcfunction	arc	0.16.0
inf	bag	0.0.1
vscode-language-pack-fr	MS-	1.44.0
python	ms-	2020.3.69010
remote-containers	ms-	0.106.0
remote-ssh	ms-	0.51.0
remote-ssh-edit	ms-	0.51.0
remote-wsl	ms-	0.42.4
vscode-remote-extensionpack	ms-	0.20.0
powershell	ms-	2020.3.0
java	red	0.58.0
vscodeintellicode	Vis	1.2.6
vscode-java-debug	vsc	0.25.1
vscode-java-dependency	vsc	0.9.0
vscode-java-pack	vsc	0.8.1
vscode-java-test	vsc	0.22.2
vscode-maven	vsc	0.21.2
minecraft-lang-colorizer	zz5	1.0.0

[mjbvz]

Similar end of the call stack to #33556

[sheetalkamat]

Can you please post tsserver log so we can see what went wrong. Thank you.
You can upload logs by following these steps:

1. Set "typescript.tsserver.log": "verbose"
2. Restart vscode or vscode insiders
3. Reproduce the problem
4. In vscode or vscode insiders, run the TypeScript: Open TS Server log command
5. This should open a large file called tsserver.log. Please share this file. Additionally you can also share file ti.log created next to it.