Error: Cannot find module 'socket.io/node_modules/redis' on Mac - django

Question

I am trying to run this example (http://maxburstein.com/blog/realtime-django-using-nodejs-and-socketio/) but I'm getting this error:
module.js:340
throw err;
^
Error: Cannot find module 'socket.io/node_modules/redis'
at Function.Module._resolveFilename (module.js:338:15)
at Function.Module._load (module.js:280:25)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (/Users/felipemoran/Desktop/django-realtime-tutorial-master/nodejs/chat.js:7:13)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
What I did so far was:
Unpack the source files - ok
Start Redis server (by typing on terminal redis-server) - ok
Start Django server (by typing on a different window python manage.py runserver, while in the propper folder) - ok
The next step would be, on a third terminal window, run the command node chat.js, while in the folder nodejs folder from the example files, but I'm getting this error.
I'm on Mac OS X Maverics, I installed node.js from the official mac installer and I installed socket.io using the npm command.
I also tried running rpm install socket.io -g , rpm install -g socket.io, those two with sudo and runing these commands from the nodejs folder but still no success.
Thanks!

Answer 1

Running npm install socket.io installs the latest version from npm which is now 1.1.0. Your tutorial uses version 0.9 and a lot changed from that to 1.0, including how to use the Redis adapter. Since the tutorial does not use a package.json to manage the dependencies you ended up with wrong version.
You can either upgrade your server code to work with latest socket.io (for which you need to install socket.io-redis) or check the latest version from the 0.9 branch by running npm view socket.io versions and then install npm install socket.io#0.9.17.
And please remove the global installations, they will cause you gray hair later (npm uninstall -g socket.io).