http is not recognized has an internal or external command

[Saravanan1412]

When we try to run the http:3000/api/hello command in cmd , i get the error : http is not recognized has an internal or external command. And after that i installed the http server using the command "npm install http-server". this command installed the http server, but still if i run the the http command i get the same error. please solve this issue.