Where is the Configure function for the Express module in EasyRTC

I'm new to NodeJS and maybe I'm putting the cart before the horse here, but I am attempting to run the demo of EasyRTC using NodeJS.

The EasyRTC download page has an "easy install instructions" list of actions to perform to run EasyRTC out of the box.

I encountered a problem with the second to last step - run server.js - upon attempting to run it I receive an error claiming that the httpApp.configure() function does not exist (TypeError: undefined is not a function). Now, httpApp is defined as require("express");, so I went over every file within /node_modules/express/lib and, as the error suggests, there is no configure function defined anywhere...

So, is this just me being a complete n00b and not knowing what I'm doing? I followed all of the steps in their example - and they aren't exactly obtuse instructions.

1. download and install node.js
2. download EasyRTC and place it anywhere you want
3. get EasyRTC dependencies using npm

4. run EasyRTC's server.js

   • (I skipped over the "create folder" and "navigate to folder" steps here because... c'mon)

Am I supposed to manually create the configure function for the express module? And if so, why do they claim that it runs "out of the box"?

You shouldn't add that function in express, that function(configure) was removed in express 4. https://github.com/strongloop/express/wiki/Migrating-from-3.x-to-4.x

Solution is , go to package.json file , change the json as follow, express from "*" to "3.x" , then run npm install and then run server

"dependencies" : {
    "easyrtc"   : "*",
    "express"   : "3.x", 
    "socket.io" : "*"
},