VS Code not recognizing .vue files — “Code language not supported or defined” despite Volar installed

Question

I'm working on a Vue 3 project using Visual Studio Code on Windows 11.

Even though I have installed the Vue - Official extension (from Vue) and tried reinstalling it, VS Code keeps showing this error in the status bar when I open any .vue file:

Code language not supported or defined

Things I have tried:

Reinstalled VS Code and reset User settings
Installed both “Vue - Official” and “Volar” extensions
Tried setting "editor.defaultFormatter": "Vue.volar" in settings.json
Checked that .vue is being detected (bottom bar shows “vue”)
Verified that Volar is enabled and activated in the workspace

Still, the language server does not recognize .vue files.

Here’s a sample .vue file that shows the error:

<script>
</script>

<template>
  <h1>Vue Starter Page</h1>

  <div class="main-info">
    <p>
      This is a sample starter Vue component. This component will be deleted during your exercise.
    </p>
  </div>
</template>

<style scoped></style>

Here's what I need help with; what might be causing .vue files to be unrecognized despite Volar being installed and active?

Suresh Hemal · Accepted Answer · 2025-07-15 11:25:48Z

0

Try with https://marketplace.cursorapi.com/items/?itemName=Vue.volar

But my honest suggestion is, if you only focus on frontend, Use WebStorm (which is free)

answered Jul 15 at 11:25

Suresh Hemal

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2 Comments

VLAZ Jul 15 at 11:37

"Use WebStorm (which is free)" it's only free for non-commercial use. It's absolutely not free for companies and even individuals that will do commercial development.

VLAZ Jul 15 at 11:40

And I don't know if the link you give would work for VSCode. Opening it gives me a 404 API response. And it's definitely not the VSCode marketplace URL: marketplace.visualstudio.com/vscode If I had to guess, it's the marketplace for the Cursor editor but I've no idea if that's compatible with VSCode.

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