Error building electron app

[vince2020]

When I want to build an electronic app, the following error occurs. Please help me to see how to solve it. There is no exception in the development mode，be deeply grateful！

success Saved lockfile.
Done in 2.24s.

 App · Bundling app with electron-packager...

Packaging app for platform win32 x64 using electron v9.4.4

 App · ⚠️  [FAIL] electron-packager could not build

Error: spawn powershell.exe ENOENT

(node:15768) UnhandledPromiseRejectionWarning: undefined
(node:15768) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 6)
(node:15768) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
PS F:\XDD\lifeon-electron>

This is my environment configuration

PS F:\XDD\lifeon-electron> quasar info

Operating System - Windows_NT(10.0.18363) - win32/x64
NodeJs - 12.20.2

Global packages
  NPM - 7.5.6
  yarn - 1.22.10
  @quasar/cli - 1.1.0
  @quasar/icongenie - Not installed
  cordova - Not installed

Important local packages
  quasar - 1.15.4 -- Build high-performance VueJS user interfaces (SPA, PWA, SSR, Mobile and Desktop) in record time
  @quasar/app - 2.1.15 -- Quasar Framework local CLI
  @quasar/extras - 1.9.18 -- Quasar Framework fonts, icons and animations
  eslint-plugin-quasar - Not installed
  vue - 2.6.12 -- Reactive, component-oriented view layer for modern web interfaces.
  vue-router - 3.2.0 -- Official router for Vue.js 2
  vuex - 3.6.0 -- state management for Vue.js
  electron - 9.4.4 -- Build cross platform desktop apps with JavaScript, HTML, and CSS
  electron-packager - 14.2.1 -- Customize and package your Electron app with OS-specific bundles (.app, .exe, etc.) via JS or CLI
  electron-builder - 22.10.5 -- A complete solution to package and build a ready for distribution Electron app for MacOS, Windows and Linux with “auto update” support out of the box
  @babel/core - 7.13.8 -- Babel compiler core.
  webpack - 4.44.2 -- Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders 
to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
  webpack-dev-server - 3.11.0 -- Serves a webpack app. Updates the browser on changes.
  workbox-webpack-plugin - Not installed
  register-service-worker - 1.7.1 -- Script for registering service worker, with hooks
  typescript - 3.9.5 -- TypeScript is a language for application scale JavaScript development
  @capacitor/core - Not installed
  @capacitor/cli - Not installed
  @capacitor/android - Not installed
  @capacitor/ios - Not installed

Quasar App Extensions
  *None installed*

[vince2020]

Edit the path environment variable in the user environment variable, and add the path of windows PowerShell
C:\Windows\System32\WindowsPowerShell\v1.0

After trying, it finally worked!

[vince2020]

App · Bundling app with electron-packager…

Packaging app for platform win32 x64 using electron v9.4.4

App · [SUCCESS] electron-packager built the app

Build succeeded

Build mode… electron
Pkg quasar… v1.15.4
Pkg @quasar/app… v2.1.15
Debugging… no
Publishing… no
Transpiled JS… yes (Babel)

Output folder… F:\XDD\lifeon-electron\dist\electron

PS F:\XDD\lifeon-electron>