Here are a few things to do.

• Check if the Server is still running
  • On the Raspberry Pi open a browser and visit localhost:8080 If you see a black screen the server is still running which is good…
• Check your changes with git status. Any changes that you didn’t make on purpose? (Especially check the updatenotification module Validate them and revert them if needed
• Rename your config _config.js (Or someting…) to force the MagicMirror to load the default config.js, check if the expected config file error appears
• Meditate over your changes you might miss an obvious error in your code
• Post the censored config.js file here

@mishkalidas You are also using a Raspberry Pi Zero W, last time I checked it wasn’t compatible with MagicMirror out of the box.

Here is a quote from the MagicMirror Readme.md

Electron, the app wrapper around MagicMirror², only supports the Raspberry Pi 2/3. The Raspberry Pi 0/1 is currently not supported. If you want to run this on a Raspberry Pi 1, use the server only feature and setup a fullscreen browser yourself. (Yes, people have managed to run MM² also on a Pi0, so if you insist, search in the forums.)

The sudo thing is also a good idea, but I just want to raise this issue to prevent you from getting frustrated by it not working:)

@acimail01 Ok, we can fix the $ is not defined at loadJSON.

Replace the function with the following which uses good old XMLHttpRequest:

fuction loadJSON(filePath) {
    if (typeof module !== "undefined") {
        return require(filePath);
    } else {
        try {
            var xmlhttp = new XMLHttpRequest();
            xmlhttp.open("GET", filePath, false);
            xmlhttp.send();
            if (xmlhttp.status === 200) {
                return JSON.parse(xmlhttp.responseText);
            } else {
                throw "Unexpected status code!";
            }
        } catch (e) {
            console.error(e);
            return {};
        }
    }
}

@acimail01 Ok, I just got an idea.

Place your json somewhere in the config folder and place the following function in your config.js.

function loadJSON(filePath) {
    if (typeof module !== "undefined") {
        return require(filePath);
    } else {
        try {
            return JSON.parse($.ajax({
                type: "GET",
                url: filePath,
                async: false
            }).responseText);
        } catch (e) {
            console.error(e);
            return {};
        }
    }
}

And call it like:

modules: [
	loadJSON("config/clock.json")
]

This function will synchronisly load the given JSON, serializes it and returns it. This code is completly untestet, but it should work anyway:)

Edit: I just updated my answer to also work with node.js

@acimail01 Start MagicMirror in debug mode with npm start dev, it will open the developer tools. Then look for any red lines in the console.

If you can’t find the developer tools you can open it with CTRL-SHIFT-I

@acimail01 This is because the require function is not available in the browser. Are you using the server only mode?

@sdetweil Attention, the fs module is (obviously) not available in the server only mode.

Hey guys!

I need to use enviromental variables process.env in the config.js. However I am unable to do so in the server only mode.

The config.js is used in the “Webinterface”, this obviously don’t have access to the enviromental variables of Node.js.

I am using balena-MagicMirror (made by me) to have multiple remotely managed MagicMirrors which all contain basically the same config, but differ in a few things that should be defined as enviromental variables.

Anyone know how I can “inject” enviromental variables in the browser with some MagicMirror Module?

Edit: I just created a module that will do this

@bobbythemoh Hi, I have good news for you, I just pushed a fix. Please update MMM-Loxone for it to work again. I also made it a bit faster, I hope your wife will be happy again

Btw. This issue semes to be related to one of the latest Raspbian updates, I assume its because the new Raspberry Pi has two HDMI outputs, so there may be some changes to the HDMI related code…

@berne I recomend you to to checkout the structure of the existing config.js file.

You may also check out the W3Schools documentation: https://www.w3schools.com/js/js_objects.asp