App extension with symbolic link in package.json throws error App Extension "generic-components-service" has missing index script...

What happened?

When running quasar prepare, an app extension that is linked via file:// in package.json throws exception that there is a missing index script.

What did you expect to happen?

prepare would complete with success

Reproduction URL

n/a

How to reproduce?

npm add --save-dev file:../../Code/CommonLib/WebClientLib/quasar/app-extensions/generic-components-service
quasar ext invoke generic-components-service
quasar prepare

Error thrown:

App • ⚠️ App Extension "generic-components-service" has missing index script...

Flavour

Quasar CLI with Vite (@quasar/cli | @quasar/app-vite)

Areas

App Extension API

Platforms/Browsers

Chrome

Quasar info output

Operating System - Linux(5.14.0-284.30.1.el9_2.x86_64) - linux/x64
NodeJs - 20.18.0

Global packages
  NPM - 10.8.2
  yarn - Not installed
  pnpm - Not installed
  bun - Not installed
  @quasar/cli - 2.4.1
  @quasar/icongenie - Not installed
  cordova - Not installed

Important local packages
  quasar - 2.17.4 -- Build high-performance VueJS user interfaces (SPA, PWA, SSR, Mobile and Desktop) in record time
  @quasar/app-vite - 2.0.0-rc.3 -- Quasar Framework App CLI with Vite
  @quasar/extras - 1.16.13 -- Quasar Framework fonts, icons and animations
  eslint-plugin-quasar - Not installed
  vue - 3.5.13 -- The progressive JavaScript framework for building modern web UI.
  vue-router - 4.4.5
  pinia - 2.2.6 -- Intuitive, type safe and flexible Store for Vue
  vuex - Not installed
  vite - 5.4.11 -- Native-ESM powered web dev build tool
  vite-plugin-checker - Not installed
  eslint - 8.57.1 -- An AST-based pattern checker for JavaScript.
  esbuild - 0.24.0 -- An extremely fast JavaScript and CSS bundler and minifier.
  typescript - 5.5.4 -- TypeScript is a language for application scale JavaScript development
  workbox-build - Not installed
  register-service-worker - Not installed
  electron - Not installed
  @electron/packager - Not installed
  electron-builder - Not installed
  @capacitor/core - Not installed
  @capacitor/cli - Not installed
  @capacitor/android - Not installed
  @capacitor/ios - Not installed

Quasar App Extensions
  @quasar/quasar-app-extension-testing-unit-vitest - 1.1.0 -- A Quasar App Extension for running tests with Vitest
  quasar-app-extension-generic-components-service - 0.0.1 -- Web client common library

Relevant log output

No response

Additional context

package.json:

`{ "name": "testwebclient", "version": "0.0.1", "description": "Test Web Client", "productName": "Test Web Client", "author": "test@test.com", "type": "module", "private": true, "scripts": { "lint": "eslint --ext .js,.ts,.vue ./", "format": "prettier --write \"*/.{js,ts,vue,scss,html,md,json}\" --ignore-path .gitignore", "test": "echo \"No test specified\" && exit 0", "dev": "quasar dev", "build": "quasar build", "postinstall": "quasar prepare" }, , "dependencies": { "@quasar/extras": "^1.16.4", "axios": "^1.2.1", "pinia": "^2.0.11", "quasar": "^2.16.0", "vue": "^3.4.18", "vue-i18n": "^9.2.2", "vue-router": "^4.0.12" }, "devDependencies": { "@intlify/unplugin-vue-i18n": "^2.0.0", "@quasar/app-vite": "^2.0.0-rc.3", "@quasar/quasar-app-extension-testing-unit-vitest": "^1.1.0", "@types/node": "^20.5.9", "@typescript-eslint/eslint-plugin": "^7.16.0", "@typescript-eslint/parser": "^7.16.0", "autoprefixer": "^10.4.2", "eslint": "^8.57.1", "eslint-config-prettier": "^9.0.0", "eslint-plugin-vue": "^9.0.0", "prettier": "^3.0.3", "quasar-app-extension-generic-components-service": "file:../../Code/CommonLib/WebClientLib/quasar/app-extensions/generic-components-service", "typescript": "~5.5.3", "vite-plugin-checker": "^0.8.0", "vitest": "^2.1.5", "vue-tsc": "^2.0.29" }, "engines": { "node": "^24 || ^22 || ^20 || ^18", "npm": ">= 6.13.4", "yarn": ">= 1.21.1" } }

quasar.extensions.json: { "@quasar/testing-unit-vitest": { "options": [ "ui" ] }, "generic-components-service": {} } `

quasarframework / quasar