I have a problem starting my Squiffy program. Is there a way to fix this main.js issue?

The error message reads: A javascript error occurred in the main process
Uncaught Exception:
SyntaxError: Unexpected token

Here is the source code:

/* global __dirname /
/ global process */

var app = require('app'); // Module to control application life.
var BrowserWindow = require('browser-window'); // Module to create native browser window.
var storage = require('./storage');

// Report crashes to our server.
require('crash-reporter').start();

var argv = process.argv;

var openFile;

if (process.platform !== 'darwin') {
openFile = process.argv[1];
}

app.on('open-file', function (event, path) {
event.preventDefault();
openFile = path;
if (mainWindow) {
mainWindow.webContents.executeJavaScript('loadFile(' + JSON.stringify(path) + ')');
}
});

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the javascript object is GCed.
var mainWindow = null;

var init = function() {
var lastWindowState = storage.get('lastWindowState');
if (lastWindowState === null) {
lastWindowState = {
width: 1200,
height: 600,
maximized: false
};
}

mainWindow = new BrowserWindow({
x: lastWindowState.x,
y: lastWindowState.y,
width: lastWindowState.width,
height: lastWindowState.height,
icon: __dirname + '/squiffy.png'
});

if (lastWindowState.maximized) {
mainWindow.maximize();
}

mainWindow.openFile = openFile;

// and load the index.html of the app.
mainWindow.loadUrl('file://' + __dirname + '/index.html');

mainWindow.on('close', function () {
var bounds = mainWindow.getBounds();
storage.set('lastWindowState', {
x: bounds.x,
y: bounds.y,
width: bounds.width,
height: bounds.height,
maximized: mainWindow.isMaximized()
});
});

// Emitted when the window is closed.
mainWindow.on('closed', function() {
// Dereference the window object, usually you would store windows
// in an array if your app supports multi windows, this is the time
// when you should delete the corresponding element.
mainWindow = null;
});
};

// Quit when all windows are closed, except on OS X.
app.on('window-all-closed', function() {
if (process.platform != 'darwin') {
app.quit();
}
});

// On OS X, this is called when the app is running in the Dock with no open windows.
app.on('activate-with-no-open-windows', init);

// This method will be called when Electron has done everything
// initialization and ready for creating browser windows.
app.on('ready', init);