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I'm new to learning node.js and seem to have run into an error that can't get to fix. Its a very simple and beginners code so shouldn't need much explanation, more over it works fine on localhost, but breaks on production server. App.js var express = require('express') , routes = require('./routes') , http = require('http') , path = require('path'); var app = express(); app.configure(function(){ app.set('port', process.env.PORT || 8000); app.set('views', __dirname + '/views'); app.set('view engine', 'jade'); app.use(express.favicon()); app.use(express.logger('dev')); app.use(express.bodyParser()); app.use(express.methodOverride()); app.use(app.router); app.use(express.static(path.join(__dirname, 'public'))); }); app.configure('development', function(){ app.use(express.errorHandler()); }); app.get('/', routes.index); var server = app.listen(8000); var io = require('socket.io').listen(server); server.listen(app.get('port'), function(){ console.log("Express server listening on port " + app.get('port')); }); And here's the dreaded error! http.js:644 throw new Error('Can\'t set headers after they are sent.'); ^ Error: Can't set headers after they are sent. at ServerResponse.OutgoingMessage.setHeader (http.js:644:11) at ServerResponse.res.setHeader (/home1/artalatc/public_html/cloud1/node_modules/express/node_modules/connect/lib/patch.js:59:22) at next (/home1/artalatc/public_html/cloud1/node_modules/express/node_modules/connect/lib/proto.js:153:13) at Function.app.handle (/home1/artalatc/public_html/cloud1/node_modules/express/node_modules/connect/lib/proto.js:198:3) at Server.app (/home1/artalatc/public_html/cloud1/node_modules/express/node_modules/connect/lib/connect.js:66:31) at Manager.handleRequest (/home1/artalatc/public_html/cloud1/node_modules/socket.io/lib/manager.js:564:28) at Server.&

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