You need extra dependencies in the package.json

[jensemil]

{ "name": "angular-socket-io-im", "version": "0.0.1", "private": true, "dependencies": { "asap": "^2.0.4", "css-stringify": "^2.0.0", "express": "2.5.10", "indexof": "0.0.1", "jade": ">= 0.26.1", "socket.io": ">= 0.9.6", "after": ">= 0.8.1", "asap": ">=2.0.4", "backo2": ">=1.0.2", "component-bind": ">= 1.0.0", "component-emitter": ">=1.2.1", "css-parse": ">=2.0.0", "engine.io-client": ">=1.6.11", "formidable": ">=1.0.17", "mime-types":">=2.1.11", "negotiator": ">=0.6.1", "options": ">= 0.0.6", "parseuri": ">=0.0.4", "to-array": ">=0.1.4", "ultron": ">=1.0.2", "utf8": ">=2.1.1" } }

[clemens-tolboom]

App is running following instructions

npm install
node app.js

so not sure what this issue is about :)