You need extra dependencies in the package.json

{
"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"
}
}