exception on compiñe amgular proj with vscode

[scascalesp]

An unhandled exception occurred: Cannot find module '@angular-devkit/build-angular/package.json'
Require stack:

• C:\Users\SCPPC\AppData\Roaming\npm\node_modules@angular\cli\node_modules@angular-devkit\architect\node\node-modules-architect-host.js
• C:\Users\SCPPC\AppData\Roaming\npm\node_modules@angular\cli\node_modules@angular-devkit\architect\node\index.js
• C:\Users\SCPPC\AppData\Roaming\npm\node_modules@angular\cli\models\architect-command.js
• C:\Users\SCPPC\AppData\Roaming\npm\node_modules@angular\cli\commands\build-impl.js
• C:\Users\SCPPC\AppData\Roaming\npm\node_modules@angular\cli\node_modules@angular-devkit\schematics\tools\export-ref.js
• C:\Users\SCPPC\AppData\Roaming\npm\node_modules@angular\cli\node_modules@angular-devkit\schematics\tools\index.js
• C:\Users\SCPPC\AppData\Roaming\npm\node_modules@angular\cli\utilities\json-schema.js
• C:\Users\SCPPC\AppData\Roaming\npm\node_modules@angular\cli\models\command-runner.js
• C:\Users\SCPPC\AppData\Roaming\npm\node_modules@angular\cli\lib\cli\index.js
• C:\Users\SCPPC\AppData\Roaming\npm\node_modules@angular\cli\lib\init.js
• C:\Users\SCPPC\AppData\Roaming\npm\node_modules@angular\cli\bin\ng
  See "C:\Users\SCPPC\AppData\Local\Temp\ng-eDa4sL\angular-errors.log" for further details.
  npm ERR! code ELIFECYCLE
  npm ERR! syscall spawn
  npm ERR! file C:\WINDOWS\system32\cmd.exe
  npm ERR! errno ENOENT
  npm ERR! ng-auth@0.0.0 build: ng build
  npm ERR! spawn ENOENT
  npm ERR!
  npm ERR! Failed at the ng-auth@0.0.0 build script.
  npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
  npm WARN Local package.json exists, but node_modules missing, did you mean to install?

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\SCPPC\AppData\Roaming\npm-cache_logs\2021-11-25T22_51_28_275Z-debug.log
The terminal process "C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe -Command npm run build" terminated with exit code: 1.

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thx