node: has no method create

I'm trying to test out a node/backbone tutorial at this git hub site $ git clone git://github.com/antoviaque/backbone-relational-tutorial.git. When I start the node server (by running command node app), I'm getting an error that a method create doesn't exist in a restify module. The error's triggered right after the server appears to start

restify listening at http://0.0.0.0:3001

I'm not at all experienced with node, and would appreciate any help you can offer.

node_modules/restify/lib/server.js:724
        d = domain.create();

Object function Domain(options){
...lots of code ommitted....
    has no method 'create'
        at Server._run (/Users/mm/Sites/backboneforum/node_modules/restify/lib/server.js:724:20)
        at onRoute (/Users/mm/Sites/backboneforum/node_modules/restify/lib/server.js:592:38)
        at Router.find (/Users/mm/Sites/backboneforum/node_modules/restify/lib/router.js:372:17)
        at _route (/Users/mm/Sites/backboneforum/node_modules/restify/lib/server.js:532:29)
        at Server._handle (/Users/mm/Sites/backboneforum/node_modules/restify/lib/server.js:617:17)
        at Server.onRequest (/Users/mm/Sites/backboneforum/node_modules/restify/lib/server.js:201:22)
        at Server.emit (events.js:70:17)
        at HTTPParser.onIncoming (http.js:1514:12)
        at HTTPParser.onHeadersComplete (http.js:102:31)
        at Socket.ondata (http.js:1410:22)