I have an Angular project and if I want to start the project with 'ng serve' it is opening the ng file from
C:\Users{user}\AppData\Roaming\npm\node_modules\@angular\cli\bin
Also, I can start the project with 'npm start'.
You have configured wrong environment variable path.
Path should be:
C:\Users\{UserName}\AppData\Roaming\npm
NOTE: Verify ng.cmd
file should be there in C:\Users\{UserName}\AppData\Roaming\npm
. If not please reinstall anglular cli.