node.js - Node server, Socket.io 'io is not defined'?

Question

I've followed the exact same steps which have always previously worked for me, create application through express, place the module dependencies in the node_modules folder. It appears that the socket.io client-side javascript file isn't being found.

(I've looked at other peoples fixes, which is to include the JavaScript file in a script tab. I have not had to do this for my previous node + socket.io projects).

JavaScript on client:

var socket = io.connect('http://localhost');

JavaScript on server:

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

node_modules folder:

socket.io, which has an internal node_modules folder containing socket.io-client

Error Message:

Uncaught ReferenceError: io is not defined
(anonymous function)

When I include the socket.io client manually: http://cdn.socket.io/stable/socket.io.js

I get a different error which is:

Uncaught TypeError: Object #<Object> has no method 'connect'
(anonymous function)

Answer 1

On the client, did you do:

<script src="/socket.io/socket.io.js"></script>

before you set the socket variable?