TS Server fatal error: Debug Failure. False expression: Type assertions should never be parsed outside of TS; they should either be comparisons or JSX.

[woelmoe]

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TypeScript Version: 5.0.0-dev.20230210

Steps to reproduce crash
1.
2.
3.

Global TS Server Plugins

• typescript-vue-plugin-forward

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

Error: Debug Failure. False expression: Type assertions should never be parsed outside of TS; they should either be comparisons or JSX.
    at parseTypeAssertion (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:33923:11)
    at parseSimpleUnaryExpression (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:33552:16)
    at parseUnaryExpressionOrHigher (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:33520:35)
    at parseBinaryExpressionOrHigher (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:33438:25)
    at parseAssignmentExpressionOrHigher (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:33111:18)
    at parseExpression (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:33077:16)
    at doOutsideOfContext (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:30772:12)
    at allowInAnd (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:30793:12)
    at parseExpressionOrLabeledStatement (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:34593:24)
    at parseStatement (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:34825:12)
    at parseListElement (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:31544:12)
    at parseList (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:31529:19)
    at parseSourceFileWorker (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:30588:24)
    at Object.parseSourceFile (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:30421:20)
    at createSourceFile (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:30282:21)
    at createLanguageServiceSourceFile (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:134900:22)
    at acquireOrUpdateDocument (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:131822:26)
    at Object.acquireDocumentWithKey (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:131747:12)
    at getOrCreateSourceFileByPath (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:135225:31)
    at Object.getOrCreateSourceFile (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:135205:14)
    at e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:135137:42
    at Object.getSourceFileWithCache [as getSourceFile] (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:116904:24)
    at findSourceFileWorker (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:119236:23)
    at findSourceFile (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:119156:20)
    at e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:119105:22
    at getSourceFileFromReferenceWorker (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:119074:26)
    at processSourceFile (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:119103:5)
    at processRootFile (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:118899:5)
    at e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:117684:41
    at forEach (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:2308:22)
    at createProgram (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:117684:5)
    at synchronizeHostData (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:135161:15)
    at Proxy.getProgram (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:135233:5)
    at ConfiguredProject2.updateGraphWorker (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:171784:41)
    at ConfiguredProject2.updateGraph (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:171721:32)
    at ConfiguredProject2.updateGraph (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:172903:24)
    at _ProjectService.createLoadAndUpdateConfiguredProject (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:174510:13)
    at _ProjectService.assignProjectToOpenedScriptInfo (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:175601:26)
    at e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:175881:64
    at flatMap (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:2556:17)
    at _ProjectService.applyChangesInOpenFiles (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:175881:24)
    at updateOpen (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:177026:29)
    at e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:179593:69
    at IpcIOSession.executeWithRequestId (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:179585:14)
    at IpcIOSession.executeCommand (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:179593:29)
    at IpcIOSession.onMessage (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:179635:51)
    at process.<anonymous> (e:\Users\woelmoe\.vscode\extensions\ms-vscode.vscode-typescript-next-5.0.202302100\node_modules\typescript\lib\tsserver.js:181203:14)
    at process.emit (node:events:390:28)
    at emit (node:internal/child_process:917:12)
    at processTicksAndRejections (node:internal/process/task_queues:84:21)
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[mjbvz]

Duplicate of vuejs/language-tools#2434

As the issue reporter noted, this is likely caused by one of the Vue extensions you have installed. Please following up with the correct extension so that they can investigate and fix this