node js Uncaught Error: error with HTTP module

Question

i am new to nodejs and this probleme made a headeach for me This is my code below:

import http from 'http';
http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.write('Hello World!');
  res.end();
}).listen(8080);

The Error is:

Uncaught TypeError: Error resolving 'http' module specifier. Relative module specifiers must start with "./", "../" or "/"

I searched in blogs and youtube and I couldn't find the answer(Note: just three days ago this code worked perfectly but now it shows me this error).

Hope someone can help me to fix this Error.