v1.78.0 error on .vue files: Non-null assertions can only be used in TypeScript files.ts(8013)

[MarceloLuis1997]

Does this issue occur when all extensions are disabled?: No

• VS Code Version: 1.78.0
• OS Version: Ubuntu 22.04 (Linux x64 5.19.0-41-generic snap)

Steps to Reproduce:

After the update for v1.78 i'm getting the error Non-null assertions can only be used in TypeScript files.ts(8013) on .vue files when using the slot template:

<template #[item.status]="{item}">

The error is reported on the # character.

It's working fine on v.1.77

[genelee96]

Same error here. Happened after the new VScode update since I havn't changed any code since before/after it started occurring

[Hobeein]

Same here. This error has confused me for many hours. Tried many different way but can not solve it , thought it was my problem.
Hoping for help.

[craigrileyuk]

Same.

Checked I was using Volar in take-over mode and upgraded to v5.0.4 of Volar's TS server, but still errors.

[Doston777]

Same) But this error does not affect the performance of the program.

[MarceloLuis1997]

vuejs/language-tools#3121

[VSCodeTriageBot]

This issue is caused by an extension, please file it with the repository (or contact) the extension has linked in its overview in VS Code or the marketplace for VS Code. See also our issue reporting guidelines. If you don't know which extension is causing the problem, you can run Help: Start extension bisect from the command palette (F1) to help identify the problem extension.

Happy Coding!

[edson-alexandre]

I was facing the same problem and after removing an extention called "Vue Language Features (Volar)" the problem was fixed. Instead of that extension I am using Vetur now.

[craigrileyuk]

after removing an extention called "Vue Language Features (Volar)" the problem was fixed. Instead of that extension I am using Vetur now.

… After amputating my arm, the tiny spot on my finger was fixed. Now I just grab at things with my mouth if I want to pick them up.

[qbuache]

I have that issue since I upgraded vue from 3.2.45 to 3.3.1. No error message prior to that with VSCode 1.78.1