[BEX] index.html not found after quasar build

[ManUtopiK]

Describe the bug
Everything works well in dev mode, but after building the extension index.html is not found.

To Reproduce
Steps to reproduce the behavior:

1. Create a BEX app with quasar create mybex with Vuex, Axios, Vue-i18n
2. Add BEX mode with quasar mode add bex
3. Run dev mode with quasar dev -m bex. Works as expected.
4. Build the BEX with quasar build -m bex
5. Test built extension by loading unpackaged extension dist/bex/UnPackaged
6. Extension is loaded by google Chrome
7. Open extension with a click in the icon : ERR_FILE_NOT_FOUND
    
   Or

5. Test built extension by loading extension dist/bx/Packaged/chrome/mybex.zip with drag and drop in chrome://extensions
6. Extension is loaded by google Chrome
7. Open extension with a click in the icon : ERR_FILE_NOT_FOUND

Expected behavior
Open the page of the extension.
I also tried with popup and options. Same behavior.

After digging into dist/bex/UpnPackaged folder, I suppose the file index.html should be inside the www folder and not at the root folder. Like in src-bex/www/index.html.

Platform (please complete the following information):
Quasar Version:
@quasar/app Version: v3.0.1

Quasar mode:

• SPA
• SSR
• PWA
• Electron
• Cordova
• Capacitor
• BEX

Tested on:

• SPA
• SSR
• PWA
• Electron
• Cordova
• Capacitor
• BEX

OS: Mac
Node: v14.17.1
Yarn: latest
Browsers: google Chrome

[rstoenescu]

Fix will be available in q/app v3.1.7

[mbilalbakhtawar]

Yes facing same issue. If you paste index.html inside www, it starts working fine.