Why do I get ReferenceError: responseCallback is not defined at line 37:19?

freshbooksPoster.js

poster.freshBooksAPICall = function (parameters) {
	var defaultCallback, responseCallBack, options, req;

	defaultCallback = function (error, response, body) {
		console.log('DEFAULT LOGGER =========================== ' + error + ' ' + response + ' ' + body);
	};

	responseCallback = function responseCallback(error, response, bodyXML) {
	//	console.log("From Freshbooks API: ", error);
	//	console.log("Response Obj", response);
	//	console.log("BodyXML", bodyXML);
		var responseTimeEntry, xmlObject, resultOkay, time_entry_id;

		responseTimeEntry = new FreshBooks.TimeEntry(); // smell, why another?
		xmlObject = jsdom.jsdom(bodyXML);
		responseTimeEntry.loadXML(xmlObject);
		resultOkay = responseTimeEntry.processResponse(xmlObject);

		console.log("Freshbooks Response processed: ", resultOkay);
		console.log("Freshbooks bodyXML: ", bodyXML);
		if (resultOkay) { // it worked
			// WORKAROUND FOR jsdom-should-extract-freshbooks-response var time_entry_id = responseTimeEntry.getXMLElementValue(xmlObject,'time_entry_id'); //
			time_entry_id = xmlObject.getElementsByTagName("time_entry_id")[0].firstChild.nodeValue;
			hook1.emit("Freshbooks ok", time_entry_id);
		} else {
			hook1.emit("Freshbooks rejected", responseTimeEntry.lastError);
		}

		console.log(result.statusCode);
	};

	options = {
		url: protocol + fbAuth + endpoint + fbPath,
		method: parameters.method || "POST",
		headers: {
			contentType: "text/xml",
			'Content-Length': parameters.data.length
		},
		body: parameters.data || "",
		onError: parameters.onError || defaultCallback('error') // smell, not sure it calls this.
	};

	console.log(options);

	req = request(options, responseCallback);// ('callback', error, response, body)

	console.log("moving on");
};