Error on first load

[chintanp]

Hey,

Congrats on a great article. It has quite an exhaustive coverage of technologies. Jade isnt my favorite and maybe the error I got was due to a typo or some such. But I am not able to move forward. After following up with your code and typing it up (mostly), and removing basic errors, I am getting the following stack trace in the browser,

TypeError: Cannot read property 'error' of undefined
    at router.get.errorMessage (G:\angular\iot.me\IoT.me\routes\index.js:88:32)
    at Layer.handle [as handle_request]    (G:\angular\iot.me\IoT.me\node_modules\express\lib\router\layer.js:95:5)
    at next (G:\angular\iot.me\IoT.me\node_modules\express\lib\router\route.js:131:13)
    at Route.dispatch (G:\angular\iot.me\IoT.me\node_modules\express\lib\router\route.js:112:3)
    at Layer.handle [as handle_request] (G:\angular\iot.me\IoT.me\node_modules\express\lib\router\layer.js:95:5)
    at G:\angular\iot.me\IoT.me\node_modules\express\lib\router\index.js:277:22
    at Function.process_params (G:\angular\iot.me\IoT.me\node_modules\express\lib\router\index.js:330:12)
    at next (G:\angular\iot.me\IoT.me\node_modules\express\lib\router\index.js:271:10)
    at Function.handle (G:\angular\iot.me\IoT.me\node_modules\express\lib\router\index.js:176:3)
    at router (G:\angular\iot.me\IoT.me\node_modules\express\lib\router\index.js:46:12)
    at Layer.handle [as handle_request] (G:\angular\iot.me\IoT.me\node_modules\express\lib\router\layer.js:95:5)
    at trim_prefix (G:\angular\iot.me\IoT.me\node_modules\express\lib\router\index.js:312:13)
    at G:\angular\iot.me\IoT.me\node_modules\express\lib\router\index.js:280:7
    at Function.process_params (G:\angular\iot.me\IoT.me\node_modules\express\lib\router\index.js:330:12)
    at next (G:\angular\iot.me\IoT.me\node_modules\express\lib\router\index.js:271:10)
    at SendStream.error (G:\angular\iot.me\IoT.me\node_modules\express\node_modules\serve-static\index.js:120:7)

I also started the app in debug mode using
set DEBUG=express:* & nodemon bin/www

I get following lines with pink color in my command prompt

 express:view lookup "error.jade" +6ms
 express:view stat "G:\angular\iot.me\IoT.me\views\error.jade" +1ms
 express:view render "G:\angular\iot.me\IoT.me\views\error.jade" +1ms
 GET / 500 124.358 ms - 2293

Typically, I would fire up my webstorm at this point, but am trying to explore other options at debugging this. I must also mention that I am suing Windows 7 in place of Ubuntu as you do, and I have a mongod instance running.

[amatelin]

I can't replicate the error on my side. From what I understand the error must be happening when req.session.error is invoked in one of the routes from the 'index.js' file. Is your express-session middleware running correctly ? You can add this as a last middleware in app.js in order to check that a session was indeed created.

app.use(function(req, res, next) {
    console.log(req.session);
    next();
})

This should print something like:
{ cookie:
{ path: '/',
_expires: null,
originalMaxAge: null,
httpOnly: true } }