Rollup failed to resolve import "src/bootstrap.tsx" from "index.html" - build

Question

The problem :
This is what happens when i run the build with my React/Vite app :
vite v2.9.6 building for production...
✓ 1 modules transformed.
ERROR [vite]: Rollup failed to resolve import "src/bootstrap.tsx" from "index.html".
This is most likely unintended because it can break your application at runtime.
If you do want to externalize this module explicitly add it to
`build.rollupOptions.external`
Expected result : A successful build.
In dev mode everything works fine.
What i tried :
Here a solution which proposes to add "/" to the path of the script in index.html, but it is already the case in my code and it does not work. I still tried without "/", just in case.
Some of my code :
in index.html:
<script type="module" src="/src/bootstrap.tsx"></script>
in vite.config.ts :
import { defineConfig, loadEnv } from 'vite';
import react from '#vitejs/plugin-react';
import path from 'path';
import { viteStaticCopy } from 'vite-plugin-static-copy';
import { viteCommonjs, esbuildCommonjs } from '#originjs/vite-plugin-commonjs';
import viteCompression from 'vite-plugin-compression';
import { createHtmlPlugin } from 'vite-plugin-html';
export default defineConfig(({ mode }) => {
const env = loadEnv(mode, process.cwd(), 'VITE_');
const publicPath = '/';
const productName = 'My product name';
return {
define: {
PUBLIC_PATH: JSON.stringify(publicPath),
PRODUCT_NAME: JSON.stringify(productName),
},
plugins: [
react({
jsxRuntime: 'classic',
}),
viteStaticCopy({
flatten: true,
targets: [
{
src: 'node_modules/#client-ux/mylib/assets/fonts',
dest: './assets',
},
],
}),
viteCommonjs(),
viteCompression({
threshold: 1024 * 8, // 8 KB
deleteOriginFile: false,
filter: /\.(js|json|ttf|eot|woff|otf)$/i,
}),
createHtmlPlugin({
entry: 'src/bootstrap.tsx',
inject: {
data: {
title: `<title>${productName}</title>`,
},
},
}),
],
optimizeDeps: {
esbuildOptions: {
plugins: [esbuildCommonjs(['#client-ux/mylib-react', '#otherlib/front-common'])],
},
},
resolve: {
alias: {
'#src': path.resolve(__dirname, 'src'),
'#root': path.resolve(__dirname, './'),
'#public': path.resolve(__dirname, './public'),
'#cypress': path.resolve(__dirname, './cypress'),
'#dist': path.resolve(__dirname, './dist'),
},
},
css: {
preprocessorOptions: {
scss: {
additionalData: `
$mylib-fonts-path: ".${publicPath}${mode === 'development' ? 'assets/' : ''}";
#import "./src/shared/styles/variables";
#import "./src/shared/styles/mixins";
#import "./node_modules/#client-ux/mylib-core/src/app/styles/common/_default.scss";
`,
},
},
},
build: {
reportCompressedSize: false,
},
};
});