"(!) Module level directives cause errors when bundled, 'use client' was ignored."

[baradhili]

Trying to use https://mui.com/material-ui/ in the svelte-react-kit sample app..

It "seems to work" but vite throws a ton of complaints like this:

(!) Module level directives cause errors when bundled, 'use client' was ignored.
node_modules/@mui/material/Button/index.js (1:0)
1: 'use client';
   ^
2: 
3: export { default } from './Button';

Changes to App.svelte

// import Button from '@material-ui/core/Button';
import Button from '@mui/material/Button';