vue-tsc reports errors on clean VitePress .md files

[cha-hin]

Describe the bug

I followed the docs to enable IntelliSence support in VS Code.

Additionally, I'm using vue-tsc to perform type checking from the command line. My tsconfig file directly affects how vue-tsc behaves.

After enabling IntelliSense, running the command to type-check my source code (including VitePress-related files) now produces the following error(s):

Console output snippet:

$ vue-tsc --noEmit

Unable to resolve embedded: template -> template_inline_css
Unable to resolve embedded: template -> template_inline_ts_0
Unable to resolve embedded: template -> template_inline_ts_1

These errors appear only when the following options are included in the tsconfig file:

{
  "include": [
    "docs/**/*.ts",
    "docs/**/*.vue",
    "docs/**/*.md", // <-- this line
  ],
  "vueCompilerOptions": {
    "vitePressExtensions": [".md"], // <-- this line
  },
}

Reproduction

Create a new vite project (using vue & typescript):

npm create vite@latest
# select "Vue"
# select "TypeScript"

Open your tsconfig.json file and replace the content with the following:

{
  "extends": "@vue/tsconfig/tsconfig.dom.json",
  "include": [
    "src/**/*.ts",
    "src/**/*.tsx",
    "src/**/*.vue",
    "docs/**/*.ts",
    "docs/**/*.vue",
    "docs/**/*.md"
  ],
  "vueCompilerOptions": {
    "vitePressExtensions": [".md"]
  }
}

Run the following command:

./node_modules/.bin/vue-tsc --noEmit

You should observe the following errors in the console output:

Unable to resolve embedded: template -> template_inline_css
Unable to resolve embedded: template -> template_inline_ts_0
Unable to resolve embedded: template -> template_inline_ts_1
Unable to resolve embedded: template -> template_inline_ts_2
Unable to resolve embedded: template -> template_inline_css
Unable to resolve embedded: template -> template_inline_css

Expected behavior

I expect that running the command vue-tsc --noEmit should not produce any warnings or errors when checking VitePress .md files, when these files don’t contain any issues.

System Info

System:
  OS: macOS 15.3.2
  CPU: (12) arm64 Apple M2 Pro
  Memory: 82.97 MB / 16.00 GB
  Shell: 5.9 - /bin/zsh
Binaries:
  Node: 22.13.0 - ~/.nvm/versions/node/v22.13.0/bin/node
  Yarn: 1.22.22 - ~/.yarn/bin/yarn
  npm: 11.2.0 - ~/.nvm/versions/node/v22.13.0/bin/npm
  pnpm: 9.15.4 - ~/Library/pnpm/pnpm
  bun: 1.0.26 - ~/.bun/bin/bun
  Watchman: 2025.02.17.00 - /opt/homebrew/bin/watchman
Browsers:
  Chrome: 134.0.6998.166
  Safari: 18.3.1
  Safari Technology Preview: 18.4

Additional context

No response

Validations

• Check if you're on the latest VitePress version.
• Follow our Code of Conduct
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.

[brc-dd]

Please create an issue at https://github.com/vuejs/language-tools

And share a repo with minimal example where this is happening. Also, check once with vitepress@next and vue-tsc@next.

[cha-hin]

@brc-dd Didn’t work with either package using @next. Issue reported at vuejs/language-tools#5299.