forever – load return undefined

test.js

/*jslint white: true, devel: true, debug: true, onevar: true,
  node: true, undef: true, nomen: true, regexp: false,
  plusplus: false, bitwise: true, unparam: false, es5: true,
  newcap: true, on: true, strict: true */

(function (global, undefined) {
    "use strict";
    
    //get the forever module
    var forever = require("forever"),
    
    	rootPath = process.cwd(),
    	
		emitter = rootPath + "/emitter.js",
		
		outputList = function () {
			
			console.log("= Output forever list:");
			var list = (forever.list(false) || []),
				open = 0;
			
			for (var i=0,il=list.length; i<il; i++) {
				if (list[i].dead !== true) {
					open++;
				}
			}
		
			console.log("= Number of open processors: ", open);
			console.log("= ", forever.list(true));
			console.log("");
		}; 
	
	//Load data
	console.log("> Test begin:");
	
	forever.load({
		root : rootPath + "/log/",
        pidPath : rootPath + "/.forever/"
	}).on("load", function () {
		console.log("");
		console.log("# load fire");
		
		
		//Output list
		outputList();
		
		//Clean up
		console.log("> clean up");
		forever.cleanUp().on("cleanUp", function () {
			
			//log fire message
			console.log("");
			console.log("# cleanUp fire");
			
			//Output list
			outputList();
			
			//Start emmiter.js
			console.log("> start emitter.js");
			forever.start(emitter, {
				forever: false,
    		    "outFile" : rootPath + "/log/emitter_output.log",
    		    "errFile" : rootPath + "/log/emitter_error.log" 
			}).on("exit", function () {
				
				//log fire message
				console.log("");
				console.log("# exit fire");

				outputList();
				
			}).on("start", function () {
				
				//log fire message
				console.log("");
				console.log("# start fire");
				
				//Output list
				outputList();
				
				//Stop all processors
				console.log("");
				console.log("> stop all processors");
				forever.stopAll(false).on("stopAll", function () {
					console.log("# stopAll fire");
					
					//Output list
					outputList();			
				});
			});
			
		});
		
	});

})(global);