Socket.io“监听器未定义”

Question

Sorry if i'm ignorant or there is an actual problem here. I am hosting a http server with node.js, and apon running the server I get the error

    C:\Users\Xander\Desktop\Website>node ./processes.js
C:\Users\Xander\Desktop\Website\node_modules\socket.io\node_modules\engine.io\lib\server.js:
  var listeners = server.listeners('request').slice(0);
                        ^

TypeError: Cannot read property 'listeners' of undefined
    at Server.attach
(C:\Users\Xander\Desktop\Website\node_modules\socket.io\node_modules\engine.io\lib\server.js:423:25)
    at Function.attach (C:\Users\Xander\Desktop\Website\node_modules\socket.io\node_modules\engine.io\lib\engine.io.js:124:10)
    at Server.listen.Server.attach (C:\Users\Xander\Desktop\Website\node_modules\socket.io\lib\index.js:228:21)
    at Object.<anonymous> (C:\Users\Xander\Desktop\Website\processes.js:8:21)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Function.Module.runMain (module.js:441:10)
    at startup (node.js:139:18)

This error has not occurred before and just recently came up. I've tried reinstalling socket.io, and personally editing the file. Though, to no avail. It fails every time. So i'll gladly take advice on how to fix this. Thank you for your time...

How its being used

//Vars
var http       = require('http');
var express    = require("express");
var app        = express();
var path       = require("path");
var connect    = require("connect");
var io = require('socket.io').listen(server);
var socket     = io.listen(server);

//Defined port

const PORT = 8080;

//Connection handler

function handleRequest(request, response){  
response.end(request.url);
};

var server = http.createServer(handleRequest);

//Log all connections made


//Show .html file

app.get('/',function(req,res){  
res.sendFile(path.join(__dirname+'/index.html'));
});

//Port to listen to

app.listen(8080);

Answer 1

In this line of your code:

var io = require('socket.io').listen(server);

server is undefined.

---

You can probably change this:

app.listen(8080);

to this:

var server = app.listen(8080);
var io = require('socket.io').listen(server);

And, get rid of these that are too early in your code:

var io = require('socket.io').listen(server);
var socket     = io.listen(server);

And, remove these too since you're using Express as your server:

function handleRequest(request, response){  
    response.end(request.url);
};

var server = http.createServer(handleRequest);