Mirror is blank even after preparing a config.js file

[paviro]

@taztrk make sure to check your web inspector (use the node serveronly function and a browser of your choice - there should be a thread about that somewhere) for errors.

[taztrk]

I tried to follow the HOw to Troubleshoot forum. I downloaded firebug and did node serveronly and this is the result:

pi@raspberrypi:/var/www/html/MagicMirror $ node serveronly
module.js:440
    throw err;
    ^

Error: Cannot find module 'express'
    at Function.Module._resolveFilename (module.js:438:15)
    at Function.Module._load (module.js:386:25)
    at Module.require (module.js:466:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/var/www/html/MagicMirror/js/server.js:8:15)
    at Module._compile (module.js:541:32)
    at Object.Module._extensions..js (module.js:550:10)
    at Module.load (module.js:456:32)
    at tryModuleLoad (module.js:415:12)
    at Function.Module._load (module.js:407:3)
pi@raspberrypi:/var/www/html/MagicMirror $ node serveronly
module.js:440
    throw err;
    ^

Error: Cannot find module 'express'
    at Function.Module._resolveFilename (module.js:438:15)
    at Function.Module._load (module.js:386:25)
    at Module.require (module.js:466:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/var/www/html/MagicMirror/js/server.js:8:15)
    at Module._compile (module.js:541:32)
    at Object.Module._extensions..js (module.js:550:10)
    at Module.load (module.js:456:32)
    at tryModuleLoad (module.js:415:12)
    at Function.Module._load (module.js:407:3)
pi@raspberrypi:/var/www/html/MagicMirror $

I opened MM on firefox and used firebug but i didn´t see anything that looked like an error.

[paviro]

@taztrk so you did not do npm install?

[taztrk]

@paviro it turns out i didn’t. I did it now and got errors like this. Sorry for the screenshot before hand

(

[paviro]

@taztrk please use Markdown on code snippets so it is easier to read :)
Looks like your OS or node version is not supported by Electron. Try using Raspbian especially if you do not have much experience.