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[morozgrafix]

@ESOB looks like your port 8080 is in use. Do you happen to have another instance of MM running already? Or maybe something else is taking your port 8080.

[ESOB]

@morozgrafix maybe, I issued a pm2 stop and then did a restart and I am no longer getting that error. I am still getting a black only screen with the only error being:

"ERROR! Could not find main module js file."

What logs should I get you to figure out the reason for lack of display?

Edit:
Scratch that, I double checked the logs and I get the same error. I will do a full pi reboot again to triple check but it seems consistent.
Edit 2:
After triple check, only one MM instance open and same error noted about port 8080.

[morozgrafix]

@ESOB did you run npm install after pulling development branch? Next step would be to try to start it in node serveronly mode and point your browser at http://:8080 or run npm start Dev and see if you get any errors in console log of the browser or electron app

[morozgrafix]

@ESOB sorry I was replying before you edited post with update. Try temporarily changing your config.js to another port if 8080 is taken for some reason.

[ESOB]

@morozgrafix So I tried changing the port number to 8081 and I got this:

mm-0 (err): WARNING! Could not load config file. Starting with default configuration. Error found: RangeError: "port" argument must be >= 0 and < 65536
mm-0 (err): App threw an error during load
mm-0 (err): RangeError: "port" argument must be >= 0 and < 65536
mm-0 (err):     at assertPort (internal/net.js:17:11)
mm-0 (err):     at Server.listen (net.js:1371:7)
mm-0 (err):     at new Server (/home/pi/MagicMirror/js/server.js:20:9)
mm-0 (err):     at /home/pi/MagicMirror/js/app.js:193:18
mm-0 (err):     at loadNextModule (/home/pi/MagicMirror/js/app.js:142:5)
mm-0 (err):     at /home/pi/MagicMirror/js/app.js:137:6
mm-0 (err):     at Class.loaded (/home/pi/MagicMirror/modules/node_modules/node_helper/index.js:19:3)
mm-0 (err):     at loadModule (/home/pi/MagicMirror/js/app.js:118:6)
mm-0 (err):     at loadNextModule (/home/pi/MagicMirror/js/app.js:135:5)
mm-0 (err):     at /home/pi/MagicMirror/js/app.js:137:6
mm-0 (err): ERROR! Could not find main module js file.

I did run npm install, also tried serveronly and running npm start dev but did not gather any additional information. I will say the weird thing is when I leave it on port 8080, the remote control module still loads.

[morozgrafix]

@ESOB This error WARNING! Could not load config file. seems very odd. Can you please post your config.js file? Also another option is to backup your config.js and do file copy of config.js.sample to config.js to have good known configuration to begin with.

When starting with npm start dev or node serveronly do you see any errors in the Console Log of the dev tools of the electron or your browser?

P.S. I wanted to fork this troubleshooting conversation into a separate thread, but can’t seem to find a way.

[morozgrafix]

@roramirez & @MichMich looks like develop branch got broken with this commit https://github.com/MichMich/MagicMirror/commit/354b745c39a19915c3a8547445a5049555bd37ff#diff-75953debd6cf3faf33d4ff10e8353645R11

Line 11 of defaults.js got this change port: process.env.MM_PORT || 8080, and server is not starting up throwing error in the console log:

Uncaught ReferenceError: process is not defined
    at defaults.js:11
(anonymous) @ defaults.js:11

[roramirez]

@morozgrafix Yes, it’s a some things I’ve seen a few minutes ago.

Already pushed a Hotfix. Its not the most elegant soluction of the world but it work. If there something can be better is welcome ;)

Ps: Pull request is https://github.com/MichMich/MagicMirror/pull/676

[morozgrafix]

@ESOB Thanks for flagging the issue. @roramirez thanks for the fix

[MichMich]

Hotfix Merged! :)