Can not run my nodejs project Helloworld on Centos 7

I installed NodeJS by following link: But when I test my nodejs project HelloWorld, the system show errors: File hello.js: var http = require(‘http’); http.createServer(function (req, res) { res.writeHead(200, {‘Content-Type’: ‘text/plain’}); res.end(‘Hello World\n’); }).listen(8080,‘’); console.log(‘Server running at’); System show error: Server running at events.js:174 throw er; // Unhandled ‘error’ event ^ Error: getaddrinfo ENOTFOUND at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:56:26) Emitted ‘error’ event at: at GetAddrInfoReqWrap.doListen [as callback] (net.js:1448:12) at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:56:17) How can I fix this? Thanks

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Thanks for posting the question here so that others can learn from it as well. I believe the problem is with this line:


I believe it should instead read:


Just removing the protocol and putting the address only there.