I can't start /demo/ project: [WARNING] Cannot find base config file "./.svelte-kit/tsconfig.json" [tsconfig.json]

I can't start /demo/ project.

$ git clone https://github.com/svelteness/kit-docs.git
$ cd kit-docs
$ pnpm install
$ cd demo
$ pnpm install
Scope: all 4 workspace projects
.. prepare$ husky install
│ husky - Git hooks installed
└─ Done in 84ms
$ pnpm run dev

> demo@ dev /home/stephane/git/github.com/svelteness/kit-docs/demo
> vite dev --port 3002

▲ [WARNING] Cannot find base config file "./.svelte-kit/tsconfig.json" [tsconfig.json]

    tsconfig.json:2:13:
      2 │   "extends": "./.svelte-kit/tsconfig.json",
        ╵              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

failed to load config from /home/stephane/git/github.com/svelteness/kit-docs/demo/vite.config.js
error when starting dev server:
Error [ERR_MODULE_NOT_FOUND]: Cannot find module '/home/stephane/git/github.com/svelteness/kit-docs/demo/node_modules/@svelteness/kit-docs/node/index.js' imported from /home/stephane/git/github.com/svelteness/kit-docs/demo/vite.config.js
    at new NodeError (node:internal/errors:372:5)
    at finalizeResolution (node:internal/modules/esm/resolve:437:11)
    at moduleResolve (node:internal/modules/esm/resolve:1009:10)
    at defaultResolve (node:internal/modules/esm/resolve:1218:11)
    at ESMLoader.resolve (node:internal/modules/esm/loader:580:30)
    at ESMLoader.getModuleJob (node:internal/modules/esm/loader:294:18)
    at ModuleWrap.<anonymous> (node:internal/modules/esm/module_job:80:40)
    at link (node:internal/modules/esm/module_job:78:36)
 ELIFECYCLE  Command failed with exit code 1.

svelteness / kit-docs

I can't start /demo/ project: [WARNING] Cannot find base config file "./.svelte-kit/tsconfig.json" [tsconfig.json] #53