MMM-JAST stopped updating a couple of days ago.

[KristjanESPERANTO]

@vgardenn Interesting. Your config works on my system.

Please show us your system information (you can see it when you run npm run start) - and looks like this:

[2026-01-19 21:07:04.407] [INFO]  [systeminformation] 
####  System Information  ####
- SYSTEM:   manufacturer: Micro-Star International Co., Ltd.; model: MS-7D75; virtual: false; MM: v2.35.0-develop
- OS:       platform: linux; distro: Debian GNU/Linux; release: forky/sid; arch: x64; kernel: 6.17.13+deb14-amd64
- VERSIONS: electron: 39.2.7; used node: 25.0.0; installed node: 25.0.0; npm: 11.7.0; pm2: 6.0.14
- ENV:      XDG_SESSION_TYPE: wayland; MM_CONFIG_FILE: modules/MMM-Jast/config.demo.js
            WAYLAND_DISPLAY:  wayland-0; DISPLAY: :0; ELECTRON_ENABLE_GPU: undefined
- RAM:      total: 61884.49 MB; free: 52612.92 MB; used: 9271.57 MB
- OTHERS:   uptime: 60 minutes; timeZone: Europe/Berlin 

[vgardenn]

@KristjanESPERANTO Here is my system info from the npm run start output:

####  System Information  ####
- SYSTEM:   manufacturer: Raspberry Pi Foundation; model: Raspberry Pi 5 Model B Rev 1.0; virtual: false; MM: 2.34.0
- OS:       platform: linux; distro: Debian GNU/Linux; release: 13; arch: arm64; kernel: 6.12.62+rpt-rpi-2712
- VERSIONS: electron: 39.2.7; used node: 22.21.1; installed node: 22.21.1; npm: 10.9.4; pm2: 6.0.14
- ENV:      XDG_SESSION_TYPE: tty; MM_CONFIG_FILE: undefined
            WAYLAND_DISPLAY:  undefined; DISPLAY: :0; ELECTRON_ENABLE_GPU: undefined
- RAM:      total: 8062.92 MB; free: 7342.48 MB; used: 720.44 MB
- OTHERS:   uptime: 12 minutes; timeZone: America/Chicago 

This also highlighted an error I may have been missing in the pm2 logs output, so it may not be a module issue at all. I apologize if I had you looking at this and it was just an issue with my MM setup. I’ll start researching what this error means:

[2026-01-19 18:14:54.626] [ERROR] [app] WARNING! Config file appears empty, maybe missing module.exports last line? 
[2026-01-19 18:14:54.627] [ERROR] [app] WARNING! Could not load config file. Starting with default configuration. Error found: TypeError: userConfig.modules is not iterable 

[sdetweil]

@vgardenn show the last 5 lines of config.js
Compare to the sample in the same folder

What is this?

userConfig.modules

[vgardenn]

I’m unsure what that userConfig.modules is, from my googling it seems maybe related to node.js?

Here is the entire config.js. The last 5 lines look similar to the sample config:

let config = {
  modules: [
    {
      module: "MMM-MagicMover",
    },
    {
      module: "clock",
      position: "top_bar",
      config: {
	timeFormat: 12,
	displaySeconds: false,
	dateFormat: "dddd, MMMM D",
        }
    },
    {
      module: "weather",
      position: "top_center",
      config: {
	weatherProvider: "weathergov",
        type: "current",
	tempUnits: "imperial",
	roundTemp: true,
	showFeelsLike: false,
	colored: true,
	showSun: false,
	lat: "xxxxxx",
	lon: "xxxxxxx",
        }
    },
    {
      module: "MMM-Jast",
      position: "middle_center",
      config: {
	displayMode: "none",
	stocks: [
	  { name: 'DJIA', symbol: 'DIA' },
	  { name: 'SP500', symbol: 'VOO' }
	]
        }
    },
    {
       disabled: true,	
       module: "MMM-NowPlayingOnSpotify",
       position: "bottom_center",
       config: {
       	 showCoverArt: false,
         clientID: "<YOUR_CLIENT_ID>",
         clientSecret: "<YOUR_CLIENT_SECRET>",
         accessToken: "<YOUR_ACCESS_TOKEN>",
         refreshToken: "<YOUR_REFRESH_TOKEN>"
    	 }
    },
  ]
};

[sdetweil]

@vgardenn these lines are not at the bottom of your config file

/*************** DO NOT EDIT THE LINE BELOW ***************/
if (typeof module !== "undefined") { module.exports = config; }

Typically to start your MagicMirror journey
You copy the sample and edit the copy for your use

[vgardenn]

Well you called it correct, I did not start with the sample config and adding that missing line at the end of my config got this mod working as expected. I had grabbed the example config from documentation here assuming it was good enough and was off to the races.

Thank you very much for your help on this @sdetweil and @kristjanesperanto

[sdetweil]

@vgardenn cool. We’ll fix that

The MagicMirror install doc says