Check that you have node and needed dependencies

index.js

/* Check for Node.js */
  var IS_NODE = false;
  if (typeof exports !== 'undefined') {
    if (typeof module !== 'undefined' && module.exports) {
      IS_NODE = true;
      // Get dependencies
      request = require("request");
      jQuery = require("cheerio");
      $ = require("cheerio");
      _ = require("underscore");
      // Add other dependencies here
    }
  }