thank you for replying "Noel De Martin"
i used this command "npm run dev:android"
and i got this
PS C:\Users\user\Downloads\moodleapp-main2> npm run dev:android
> moodlemobile@4.4.0 dev:android
> concurrently "npm run dev:android:app" "npm run dev:android:cordova"
[0]
[0] > moodlemobile@4.4.0 dev:android:app
[0] > ionic cordova run android --livereload --external --ssl
[0]
[1]
[1] > moodlemobile@4.4.0 dev:android:cordova
[1] > npm run dev --prefix cordova-plugin-moodleapp
[1]
[0] [INFO] Hardware device(s) found for android. Using --device.
[0] > npm.cmd run ionic:serve:before
[1]
[1] > cordova-plugin-moodleapp@0.0.0 dev
[1] > concurrently "npm run dev:ts" "npm run dev:cordova"
[1]
[0]
[0] > moodlemobile@4.4.0 ionic:serve:before
[0] > gulp
[0]
[1] [0]
[1] [0] > cordova-plugin-moodleapp@0.0.0 dev:ts
[1] [0] > scripts/build.js --watch
[1] [0]
[1] [0] 'scripts' is not recognized as an internal or external command,
[1] [0] operable program or batch file.
[1] [0] npm run dev:ts exited with code 1
[1] [1]
[1] [1] > cordova-plugin-moodleapp@0.0.0 dev:cordova
[1] [1] > chokidar www/index.js -c scripts/copy-
javascript.js
[1] [1]
[1] [1] Watching "www/index.js" ..
[0] [09:10:17] Using gulpfile ~\Downloads\moodleapp-main2\gulpfile.js
[0] [09:10:17] Starting 'default'...
[0] [09:10:17] Starting 'lang'...
[0] [09:10:17] Starting 'env'...
[0] [09:10:17] Starting 'icons'...
[0] [09:10:18] Finished 'env' after 120 ms
[0] [09:10:18] Finished 'icons' after 121 ms
[0] [09:10:18] Finished 'lang' after 405 ms
[0] [09:10:18] Finished 'default' after 407 ms
[0] > npm.cmd run ionic:serve -- --
host=0.0.0.0 --port=8100 --ssl --platform=android --project=app
[0] [npm] > moodlemobile@4.4.0 ionic:serve
[0] [npm] > cross-env-shell ./scripts/serve.sh --host=0.0.0.0 --port=8100 --ssl --platform=android --project=app
[0]
[0] [ERROR] npm has unexpectedly closed (exit code 0).
[0]
[0] The Ionic CLI will exit. Please check any output above for error details.
[0] npm run dev:android:app exited with code 1
i am looking at the Troubleshooting page and I couldn't find anything related.