metro boundler does not work - expo/react native - react-native

Question

I want to run a react native app by those commands:
npm i -g expo-cli
expo init myapp
cd myapp
npm start
but I get the following error and the metro boundler not work:
Opening DevTools in the browser... (press shift-d to disable)
Error: spawn powershell ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:267:19)
at onErrorNT (internal/child_process.js:469:16)
at processTicksAndRejections (internal/process/task_queues.js:84:21)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! # start: `expo start`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the # start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\nathan-hp\AppData\Roaming\npm-cache\_logs\2020-09-22T14_48_10_269Z-debug.log
I added this to the path:
C:\Windows\System32
but I still get the error above

Answer 1

ok, that was the solution:
the problem was:
Error: spawn powershell ENOENT
so I need to add:
C:\Windows\System32\WindowsPowerShell\v1.0
to the path.
I openned Windows PowerShell as admin and run:
Set-ExecutionPolicy Unrestricted -Scope CurrentUser -Force
run npm start again in the cmd and then metro boundler was openned
I did that commands yesterday but somehow it didnt work, guess I have missed something.
The full explanation can be found here:
https://www.youtube.com/watch?reload=9&v=nfX7HtNiCZI