After installing angular-seed project, i did the following steps:
Cloned the repository :
git clone https://github.com/angular/angular-seed.git <
If you are using Window 10. Then after run
npm install -g http-server
The http-server.cmd will available in C:\Users\your-user\AppData\Roaming\npm
Then check if `http-server` work in `cmd` or not.
Environment Variable
Path (inside admin). You need to run cmd as Administrator.Path (inside System variable). You don't need to run cmd as Administrator.
C:\Users\your-user\AppData\Roaming\npm -> OK -> OK -> Re-open the cmd.http-server will work